If you have completed a subscription with us, you proceed as follows:
1. Go to profile below
2. Press the "ABO Settings"
3. Press the "Discuss the subscription"
If you have completed your subscription to Google, simply follow the instructions:
https://support.google.com/googleplay/answer/7018481
If you have completed your subscription at Apple, simply follow the instructions:
https://support.apple.com/de-de/118428