I was playing games on my phone (Galaxy A10) when all of a sudden I get this stupid bell noise that started playing. I researched a bit about it on the web and thought I was experiencing the ''Postman's'' Notification sounds. However, after I finished the steps to get rid of the sounds, THEY STILL STAYED. I have tried other things to get rid of it, including deleting the game I was playing at the time, muting Email and Gmail notifications, deleting some sound files, making my ringtone silent as well as all notificafions, restarted my phone and the bell noises are still there! Someone please help!!!