A. Check if you are logged into the same Google account that you used to make the purchase. Go to the app settings, find the 'Restore Purchases' option, and tap it to see if your purchase is restored. If not, try uninstalling and reinstalling the app, ensuring you log in with the correct account.

B. Clear the app cache by going to Settings > Apps > Hexa Stack > Storage > Clear Cache. Restart the app and check if the purchase is recognized.