I can’t make a game purchase on my account.

Hello JayBug1949,

Thank you for reaching out to Apple Support Communities. We are happy to help you!

We understand you are having trouble with in app purchases.

Is it multiple apps or one specific app that you are not able to purchase within?

We have provided you with a few helpful articles to assist:

If you don't see your in-app purchases

Manage App Store purchases, subscriptions, settings, and restrictions on iPhone

We hope this finds you well!

Cheers!