A Cofused Used

So I have premium and I got it mainly to be able to playback each ayah and for it to repeat but it doesn’t do that! Am I doing something wrong? This app would be perfect to recommend to my friends but I can’t because we use it for memorization, hence why I need playback to work! I went to settings and made it to say “repeat: three times” however it doesn’t do that. The reason I suspect I may be doing something wrong is because during the Ramadan Surah Luqman did the playback and I was shocked. I really love this app and want to support it but I don’t know how to use the very feature I bought p