Welcome to the Apple Support Communities. From your post, I understand that you've made an in-app purchase, but are unable to locate it. I'd be happy to help!
Based on what you've described, my recommendation would be to utilize the steps outlined below from If you don't see your in-app purchases - Apple Support :
Restore your in-app purchases
Some in-app purchases, such as game currency or hints, are consumable, which means that they run out as you use them. You can only restore non-consumable purchases. Learn about different types of in-app purchases.
To restore a non-consumable purchase, open the app that you made the purchase in and look for an option to restore. You might find it in one of these places:
- The app's main menu.
- The app's Settings or Options menus.
- The app's in-app store.
If you try to restore and nothing happens or you get an error
- Make sure that 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.
- Restart your device.
Have a great day!