You cannot reach Apple directly via the community forums as they are manned by volunteers, users, people much like yourself. But we can give you some help.
For purchases from the app store or itunes you should have an electronic receipt, on the bottom of which is an invitation to ‘Report a problem’. Report what you’ve described here as your problem.
If you no longer have the receipt or did not receive one, you could use this facility … https://support.apple.com/HT204084
You should also find some time to read this document about subscriptions and how to cancel them. https://support.apple.com/en-us/HT202039.