The payment is realised via App Store / Google Play Store, so unfortunately, we are not able to cancel your subscription (not even when your account is deleted or you deleted the app). However, you can cancel your Premium membership at anytime.

To cancel it on your iPhone, iPad or iPod Touch, follow these instructions: https://support.apple.com/en-il/HT202039

On your Android phone or tablet, follow these instructions: https://support.google.com/googleplay/answer/7018481?co=GENIE.Platform%3DAndroid&hl=e