To cancel a mobile phone number, unbind the mobile phone as follows:
1. Enter the personal information, select Modify where the phone has been bound, and unbind the phone number in the following interface;
2. Then the mobile phone is required to accept the verification code. If the mobile phone number has not been used, please select Modify Mobile Phone Number and modify it;
3. The verification code entered is verified successfully. After the account is returned, the mobile phone binding number is modified successfully.
After entering the binding interface, you can also rebind the phone. The steps are as follows:
1. First log in to the Ctrip account;
2. After landing, in the Ctrip information on the right side of the web page, hover the mouse to pop up a column of options and select My Information;
3. Click the edit button below to modify the information and bind the phone;
4. Phone verification code is required for binding. Enter the correct verification code and confirm.