The mobile phone number bound by Amazon was changed and lost.

My account has a management address book. You can modify the mobile phone number at the original address in the lower left corner.

If you need to modify the mobile phone number for receiving text messages, please visit My Account, click Subscription "SMS Package Tracking Service" in the settings, and then re-edit the mobile phone number you need to use. If you only want to set up a different mobile number for a certain package.