Make sure you're signed in with the same Apple ID you used to make the purchase. Sign in with a different Apple ID if you need to.
Check the restrictions on your device to make sure in-app purchases are allowed.
Check your purchase history in iTunes on your computer to make sure you were charged for the purchase.
Restart your device.
If you were charged for the purchase and still can't restore, contact the app developer for support.
Contact the app developer
Contact the app developer for support in these cases:
You don’t see an option to restore purchases.
You can’t find a consumable in-app purchase you made.
You restored an in-app purchase and still don’t see it.