Submit your refund request directly to Apple according to the iOS policy. We ask for your understanding that we are unable to assist you directly.
You can find instructions on how to get a refund from App Store in the document below.

We are unable to assist you to get a refund from App Store directly due to Apple policy. Your understanding is greatly appreciated.

Please submit a refund request to Apple following the instruction below.

Cancel your subscription (renewal) as soon as possible, within 24 hours of purchase. Follow the instructions from the link below.
How to cancel App Store subscription
Please follow the link below and request a refund directly to Apple.
How to get refund from App Store

Please note that you can only request a refund for a purchase made in the past 90 days on App Store. Make sure to check your date of purchase!