I Face Trouble Canceling Hint America Subscription and Request $29.99 Refund

I recently started a subscription in the Hint America app, and the fee of $29.99 was charged directly from my bank card within the app. After a few days, I realized that I cannot afford this subscription, and I want to cancel it. I am using the Hint America app and my bank card in Wayne County, Georgia. I have been trying to cancel the subscription now, but I have not found a clear way to do so inside the app, and the charge has already been taken from my account. I kindly request that my Hint America subscription be cancelled immediately and that no further charges be taken from my bank card. Since I have only had the subscription for a few days and cannot afford it, I am also requesting a refund of the $29.99 that was recently charged.