What should I do if the authorization code of red rice mobile phone is invalid?

Reasons and solutions for invalid authorization code of red rice mobile phone;

1. Reason: The mobile phone number reserved when opening the card is inconsistent with the current mobile phone.

2. Mobile phone dual card dual standby. When sending an authorization code, it defaults to a card. This solution is to open the SMS interface, edit the SMS with the reserved mobile phone number and resend it, and you can receive the correct verification code.