Cancel My Champspy Subscription and Refund My Payment

I purchased a Champspy subscription on 22 July using my PayPal‑linked credit card and was charged 49.80. After this payment, I decided to cancel and request my money back, but I have not received any refund. I have tried to reach Champspy about this issue, but I have not received any reply from them so far. The lack of response and refund is causing me serious concern. I request that my Champspy subscription be cancelled and that the full amount of 49.80 paid on 22 July be refunded to my PayPal credit card. I also request written confirmation of the cancellation and refund to be sent to my email address: [email protected].