Please tell us some basic information before asking for help:
Model Name:ROG Phone 2
Firmware Version:WW 17.0240.2009.49
Rooted or not:
Frequency of Occurrence: Everytime
APP Name & APP Version (If your issue relates to the app): CODM and Asphalt 9
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.
========================================
Having a game enabled in Game Genie is stopping to make in app purchases.
Disabling a game from Game Genie tool bar will enable you to do in app purchases without any issues.
This video above will help to understand the issue.
Disabling "No alerts" from Game Genie Toolbar will bring up Google Play payment prompt but will say, there is no internet. But to get in app purchase to work properly you have to completely remove the game from Game Genie.
Tried everything like reinstalling the game, clearing the data of Playstore, Game Genie.
Watch the video closely.