A. Ensure that your purchase of the no-ads version was successful. Check your app store purchase history to confirm. If it shows as purchased, try restarting the app to see if the ads stop appearing.

B. Clear the app cache by going to your device's settings, selecting 'Apps', finding Flappy Dunk, and tapping on 'Storage'. Then, select 'Clear Cache'. This can sometimes resolve issues with in-app purchases not being recognized.