Contact Support For Individual Customers For Corporate Customers

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【お詫びと復旧のご連絡】本日（2025/04/28） 8:00頃より当社Xアカウント（@coincheckjp）が第三者に不正ログインをされたことに伴い、全サービスを一時的に停止しておりました。調査・対応を完了し、2025/04/28 17:30 頃より順次サービスを再開しております。

* Title

* Name Company Name

* Registered Address Address of Company

* Please enter the address you registered with Coincheck, without omitting any details.
* Please be careful not to make errors in street numbers, building names, room numbers, etc.

* Date of birth

* Name of Transaction Representative

* Address of Transaction Representative

* Please enter the address you registered with Coincheck, without omitting any details.
* Please be careful not to make errors in street numbers, building names, room numbers, etc.

* DOB of Transaction Representative

* Registered Phone Number Phone Number

* Changed Phone Number

* If you are changing your registered phone number, please enter your new phone number.
* Please note that your transactions are temporarily restricted when changing the phone number.

What is the status of trading restriction?

* Registered Email Address Email Address

* Email Address you want to change

* If there is a change, the response to your inquiry will be sent to the email address you wish to change (please be careful not to enter the wrong address).

* Purpose of Usage

* Sent At

* Sent Currency Name

* Sent Amount

* Transaction ID

* Please check the transaction ID on the service you use for remittance.

* Do you want to remove two-factor authentication?

Yes, I do. No, I don't.

* Coincheck defines authentication using an authentication app(e.g. Google Authenticator) as two-factor authentication.

* Do you want to remove passkey authentication?

Yes, I do. No, I don't.

* If you have registered multiple passkeys, all of them will be deactivated.
* What is a passkey?

* Details

* ID selfie

* For ID selfies, please take a picture holding a note that has "the date you take the picture" and the word “Coincheck” written on it, along with "your identification documents". Make sure your face is clearly visible in the picture.
* What is ID Selfie?
* You can send up to 5 image files (JPEG, PNG, GIF, HEIC) with a maximum size of 2MB per file.

* Screenshot

（Service screen, Error display, etc.）

* Please take a screenshot of the screen you are having trouble with and attach it.
* You can send up to 5 image files (JPEG, PNG, GIF, HEIC) with a maximum size of 2MB per file.

* Bank transfer statement

* Please attach a photo of the bank transfer statement (in the case of a web statement, a screenshot image) that includes all 6 items below.

Transfer date and time・Transfer amount of money・Payer's name・Payee’s bank・Account number of the transfer destination・Branch name

* You can send up to 5 image files (JPEG, PNG, GIF, HEIC) with a maximum size of 2MB per file.

* Reference image

* Please take a screenshot of the screen you are having trouble with and attach it.
* You can send up to 5 image files (JPEG, PNG, GIF, HEIC) with a maximum size of 2MB per file.

Please remove your settings for blocking our e-mails, or set the "@coincheck.com" permission setting so that you can receive e-mails from us.
*If you still do not receive the e-mail after setting the above, please check if it has been sorted into your spam folder.

Contact Support For Individual Customers For Corporate Customers

Before contacting us

If you have an account

Contact us