Hypic App Store Billing Issue After Same-Day Cancellation

Today, I accidentally subscribed to the Hypic app through the iOS App Store. Even though I canceled the subscription the same day, the $50 charge taken from my debit card has not been refunded. I did not use the service at all.

I do not have a customer or subscriber number, and I was unable to find any contact number to reach the company. I do not accept being charged for a subscription that was made by mistake and canceled immediately—especially since I never used the service.

I am requesting that the $50 charge related to this accidental subscription be refunded to my debit card as soon as possible.