I want to cancel my subscription about this app

[許智傑 2]

Oh my god,I'm so surprised to download your app,and I never permission to subscribe windy.app,and now I received a message about credit card consumption notification form my iPad's apple store,now I want to cancel windy app subscription and return my pay,please help me and tell me how to do.

[Suty]

@許智傑-2 Can you please share the invoice or screenshot of that charge?