Hi @illdefined We shouldn't have restrictions on purchasing coins, Can you try the following?
- Close other running games or apps, (for Series X|S also close others running in quick resume)
- Remove any connected device, or additional USB's from the console then restart the Xbox and check
- Check for updates
- Change DNS settings (You can use the public google DNS primary: 8.8.8.8, secondary: 8.8.4.4, unless there is a different DNS you would rather use)
- Persistent Storage
- Go to settings > Select Device & Connections > Then Blue-Ray
- Select Persistent Storage > Clear Persistent Storage
- Alternate Mac:
- Go to settings > Select General > Then Network settings
- Go to advanced settings > Alternate Mac address > Select clear
- Select restart
- Check for additional content
- Press the Xbox "X" button on your controller > Select My Games and Apps
- Under Games, scroll to your game and press Start
- Select Manage Game and add ons > Select the Game (will shows version) on the right (top choice of the three)
- Then Manage Installation on Xbox one > Should show additional downloads and files if needed
- Remove then Readd Gamer Tag to console
