Hello @kiraweb I'm very sorry about your situation. Unfortunately, you have to ask Apple Store directly for a refund. Here is a manual you can follow:
https://www.imore.com/how-to-get-refund-itunes-app-store
Also this doesn't look like our subscription. Check first, if you have our app:
https://apps.apple.com/us/app/windy-com/id1161387262
I hope your situation will be sorted out
Best
Petra