Hi! I understand you’re having trouble with 37 Games while playing Puzzles & Chaos—specifically, you can’t make in-game purchases, and you’re unable to switch between accounts. I’m here to help you get this sorted out.

First, to get a clearer picture:
- Are you connected to the internet via Wi-Fi or mobile data?
- Have you tried logging out and logging back into your 37Games account in the game?
- Are you seeing any error messages when making purchases or switching accounts?
- Have you recently updated the game or your device’s OS?

Meanwhile, here’s a step-by-step approach we can try:

1. Check Internet Connection: Purchase and account switching often require a stable internet connection, so make sure your Android device is online.

2. Clear Cache and Data of the Game:
- Go to Settings > Apps > Puzzles & Chaos.
- Tap Storage.
- Clear Cache first, then Clear Data (Note: clearing data might reset local preferences, but your account progress should be saved if linked to 37Games).
- Restart the game and try again.

3. Verify 37Games Account Login:
- In Puzzles & Chaos, try to log out, then log back in using your 37Games credentials.
- If there’s an option to switch accounts, try switching here.

4. Check for Game Updates:
- Go to your Play Store and confirm if there is any pending update for Puzzles & Chaos. Sometimes transaction and account issues happen due to outdated versions.

5. Review Purchase Method:
- For purchases, ensure your payment method linked to Google Play is valid and active.
- Try making a small purchase to test.

6. Restart your device: Sometimes simply rebooting your phone clears temporary glitches.

If after these you still face problems with purchases or account switching, it could be related to server-side issues or maintenance periods from 37Games. They occasionally do maintenance, which can temporarily disrupt these features.

If those steps don’t help, I recommend contacting official support directly at [email protected] for account-specific or server-related issues.

Let me know how these steps go or if you have any additional details about the problems! Are you satisfied with the solution I provided so far?