How to log in to Tongcheng Travel account if it is a previous mobile phone number?

1. First open Tongcheng Travel, click Login Account, and select the Login Account option in the settings.

2. Secondly, click on the mobile phone number to log in and select other mobile phone number login options below.

3. Finally, click Next, enter your previous mobile phone number and verification code and click to log in. After logging in, you can unbind your mobile phone number and change it to your current mobile phone number.