FAQs and Inquiries
- 現在多く寄せられているお問い合わせ
- About the “Grateful Yesterdays Tour 2026”
- “Grateful Yesterdays Tour 2026” アジア公演 について
- Notice regarding expected delivery date of membership card
- About joining
- コースについて
- 会費のお支払いについて
- About logging in
- id ARTIST ID(=Plus member ID)について
- 登録情報の変更について
- キャリア・機種変更について
- 【gold key(年額コース)】継続について
- 退会について
- 【gold key(年額コース)】会員証について
- 【gold key(年額コース)】継続特典について
- 【gold key(年額コース)】会報誌について
- 各種メールの設定・メール未着について
- 「back number アプリ」について
- サイトの利用・コンテンツについて
- others
About the “Grateful Yesterdays Tour 2026”
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Q.
[one room Members Pre-sale] How to check application status and lottery results
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Q.
How to change from the "silver key" 330 yen course to the 550 yen course
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Ticket reception/electronic ticket inquiries
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Regarding online pre-sale of tour merchandise
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Tour merchandise sales at venues and pickup service
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Access to each venue, parking, shuttle buses, etc.
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Customers using wheelchair spaces
“Grateful Yesterdays Tour 2026” アジア公演 について
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Q.
By when do I need to join to be eligible to apply for priority registration for one room members?
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Inquiries regarding reception and electronic tickets
Notice regarding expected delivery date of membership card
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What is "one room"?
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Please tell me how to become a member.
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Can I view the site content without paying a membership fee?
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Can I join using something other than a smartphone?
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Can I register using a name other than my real name?
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Is it okay for one person to register multiple accounts?
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My family member is already a member, but is it possible to register again at the same address?
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Can minors who don't own a smartphone register?
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Can I join even if I live overseas (outside of Japan)?
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I have an id ARTIST ID (=Plus member ID), but I cannot register as an overseas member.
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Are there any email addresses that cannot be used for registration?
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How long does it take to become a member?
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At what stage is my membership registration complete?
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It says "You are provisionally registered," and I cannot proceed with the membership registration process.
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Is there an expiration date for membership?
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Please explain the difference between Gold Key (annual plan) and Silver Key (monthly plan).
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I would like to change from Silver Key (monthly plan) to Gold Key (annual plan).
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Can I subscribe to both Gold Key (annual plan) and Silver Key (monthly plan)?
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I would like to change my Silver Key (monthly subscription) plan from the 330 yen plan to the 550 yen plan.
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[Gold Key] How to pay the annual fee
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[Gold Key] Convenience store payment: I don't know how to pay
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[Gold Key] Convenience store payment: The payment deadline has passed
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[gold key] Credit card payment: Confirmation and cancellation of automatic renewal
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[Gold Key] Can I check or change the credit card information I registered?
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[Gold Key] I received an email from my credit card company informing me of the membership fee withdrawal at the beginning of the month my membership expires.
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【silver key】How to pay your monthly membership fee
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[silver key] Can I change the payment method?
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[Silver Key] For those planning to switch to ahamo / irumo / povo / LINEMO
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[silver key] Can I check or change the credit card information I registered?
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I get an error when registering my credit card
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If I pay by credit card, how will it appear on my statement?
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If I pay using a carrier, how will it be shown on my statement?
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How can I check my current subscription status for Silver Key (monthly plan)?
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【Gold Key (Annual Plan)】How can I check my current registration status?
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I've forgotten my membership number.
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I forgot my password.
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I can't log in.
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I can't log in because I changed my email address.
id ARTIST ID(=Plus member ID)について
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What is an ARTIST ID (=Plus member ID)?
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Where can I obtain my ARTIST ID (=Plus member ID)?
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Where can I find my ARTIST ID (=Plus member ID)?
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Can I delete the ARTIST ID (=Plus member ID)?
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I have obtained multiple ARTIST IDs (=Plus member IDs).
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Can I change my registered email address?
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I can't change my email address because the message "It's already in use" appears.
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Can I change my registered address?
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Can I change my registered country information?
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Can I change my registered phone number?
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I made a mistake when registering my date of birth and gender.
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What should I do if my last name changes?
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Can I change my registered nickname?
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[Gold Key (Annual Plan)] If I change my phone model, are there any procedures I need to follow?
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[Silver Key (Monthly Plan)] If I change my phone model, are there any procedures I need to follow? (For those using credit card payment)
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[Silver Key (Monthly Plan)] If I change my phone model, are there any procedures I need to follow? (Without changing my mobile carrier)
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[Silver Key (Monthly Plan)] If I change my phone model, are there any procedures I need to follow? (I am changing my mobile carrier.)
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Please tell me how to renew my subscription.
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Can you confirm if the renewal process has been completed?
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Can I renew my membership even after the expiration date has passed?
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Can I change my payment method for recurring subscriptions?
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What does "automatic renewal" mean?
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Can you check if automatic renewal has been set up?
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Can I stop the automatic renewal?
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Can you check if automatic renewal has been stopped?
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I stopped the automatic renewal once, but can I restart it?
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Can I change the automatic renewal setting from "do not renew" to "renew"?
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Please tell me why my subscription was canceled even though it was supposed to automatically renew.
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I received an email from my credit card company one month before my membership expired, informing me that my membership fee would be deducted.
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How do I cancel my Silver Key (monthly subscription) subscription?
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[Silver Key (Monthly Plan)] You can still log in to the site even after canceling your subscription. Have you successfully canceled your subscription?
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How do I cancel my Gold Key (annual subscription) subscription?
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[Gold Key (Annual Plan)] I can log in to the site even though I didn't renew my subscription. Has my subscription been cancelled?
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The initials on my membership card are printed incorrectly
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Can I have my membership card reissued?
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My membership card has become dirty (care tips and precautions)
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Can I change the delivery address from [overseas] to [within Japan]?
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I haven't received the newsletter
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I can't view the digital newsletter.
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The newsletter I received was damaged or defective. Can I exchange it?
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I'm not receiving emails from the fan club.
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Where can I subscribe to the fan club's email newsletter?
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How often do you send out your email newsletter?
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Where can I subscribe to the "greeting mail & birthday mail"?
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I didn't receiveバースデー email.
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I haven't received the email to reset my password.
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I paid my membership fee, but I haven't received my membership number via email.
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I sent an inquiry, but I haven't received a reply email.
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What is the "back number app"?
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Is the "back number app" a paid app?
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I cannot log in to the "back number app".
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Can I still use the "back number app" after changing my phone model?
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When you log in using the "back number app," "[Not Registered]" will be displayed on your My Page.
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If I delete the "back number app," will my fan club registration be canceled?
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Is phone number verification required for the "back number app"?
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I am unable to complete SMS authentication/identity verification for the "back number app".
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The "back number app" won't open. (It force closes/returns to the home screen)
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Could you please tell me about the push notification settings for the "back number app"?
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Regarding inquiries about the "back number app"
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What are the recommended system requirements?
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Do you offer services in languages other than Japanese?
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[iPhone] You cannot view, play, or download content.
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[Android] You cannot view, play, or download content.
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[PC] You cannot view, play, or download content.
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May I use the site's content, CD cover art, artist images, and audio files on my personal homepage or in printed materials?
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Please provide the latest information and schedule for the artist.
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Please tell me where I can send fan letters and gifts.
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Could you please provide the contact information for inquiries regarding merchandise purchased at the venue?
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Please provide contact information for inquiries regarding the "back number online store".
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[back number online store] Member-exclusive merchandise is unavailable for purchase.
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Regarding resale of live tickets
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What is "copyright"?