When using MuMu12 to make in-game payments, some users may find the Google Billing Service does not automatically start and a prompt shows "Current API version does not support the request" or "Payment cancelled". If this happens, you can refer to the following steps:
1. Open the Google Store and confirm the account login status
2. Restart the game, enter the in-game store to make a purchase, and you will be redirected to the Google payment service interface normally.