This is a ChatGPT usage guide that focuses specifically on email verification, phone number binding, and the real rules around “whether you can change them.” Many people think you can just tweak it in Settings, but there are quite a few restrictions in practice. Follow the steps below to avoid a lot of detours.
How to bind and verify your ChatGPT email
After you register ChatGPT with an email address, the system will usually send a verification email to your inbox. Open the email, click the verification link, then go back to the ChatGPT webpage and refresh to complete the binding. If you don’t receive the email, first check your Spam/Promotions folder, and add sender addresses related to openai.com to your whitelist.
If you log in to ChatGPT using Google/Apple, your email essentially follows your third-party account—it isn’t an email you “manually entered.” In this case, you generally won’t see an “change email” entry inside ChatGPT, and that’s normal.
ChatGPT phone number binding: where to enter it and hard limitations
During registration or when a security check is triggered, ChatGPT may require you to bind a phone number and receive an SMS verification code. Follow the on-page prompts to select your country code, enter your number, receive the code, and submit it to complete verification. The code is usually one-time and valid only for a short period; if it expires, you’ll need to request a new one.
What you should know in advance: ChatGPT’s phone number verification is more like a “security check” than contact-profile information. A phone number typically can’t be freely changed or unbound within the account; if you really need to change numbers, in most cases you’ll have to create a new account or contact support—don’t expect a one-click change in Settings.


