What did you try to do?
Get the free parts
What happened instead?
I always got 1 or 2 free parts per day instead the regular 5, then the button disappear
Did the problem happen while using wi-fi, mobile data, or both?
Both
Did the bug happen in the app, on PC, or both?
App
What is the model of your device?
Xiaomi MI9
What is the operating system?
Android
What is the version number of the operating system?
Android 9
Can the bug be reproduced?
Yes, everyday
Additional comments:
I got another account, that I managed with an iPhone XR, and I have the same problem.