1. Open the Taobao homepage (/) and find "Forgot Member Name" at the bottom of the login box.
2. Under the jumped page, enter the ID number and name. Note that web search only supports users who have completed Alipay real-name authentication for the time being.
3. Then use the "Sweep" function in the upper left corner of mobile phone Taobao to scan the page QR code and view your own information. After passing, the system will push the name of Taobao member under your ID card, and you can get your account back.
In addition, if you forget all the above information, it is recommended to change your email registration again!
References:
Taobao Service Center-Contact Xiaomi
Taobao-Home Page