デベロッパの回答 、 Hello, We apologize for the inconvenience you've encountered. Your feedback is valuable to us. Could you share more details via email to help us better understand and address the issue? Our email: meatpiemeet@gmail.com
Kindly note that the trial is followed by a full subscription. We are sorry for the misunderstanding happened.
Any further charges should be canceled in your Apple ID account. Just in case, here is the link for the detailed instructions: https://support.apple.com/en-us/118428.