Difficulty canceling – Drums: Learn & Play Beat Games Review

I went to the edit subscription page on the App Store website to try to cancel this app. However I can't find a cancellation option. It says "Your subscription -Weekly premium pass one week- $7.49/week. Expires August 1, 2019" Am I already unsubscribed? I'm very confused and would appreciate your help. I don't want to get billed again. Thank you.
Review by raptor3400 on Drums: Learn & Play Beat Games.