Refund Payments of ReelShort - Continuation Of Charges After Successful Cancelation

I had a ReelShort subscription through Apple that I canceled on July 7. Despite the cancellation being successful, I later realized I was still being charged weekly by ReelShort. Between July 7 and August 21 I was overcharged a total of about 150 USD, and I have bank statements and receipts clearly showing these repeated payments. I have already emailed both ReelShort and Apple multiple times, attaching all the documentation that proves the incorrect charges and the cancellation date. Instead of anyone actually reviewing my case, I keep receiving the same generic, copy‑paste responses, and no one is addressing the issue or explaining why the subscription continued to renew after cancellation. I am extremely frustrated and feel ignored, as this situation has been going on for weeks despite my efforts to resolve it directly with the companies. I request an immediate full refund of all ReelShort charges made after July 7, as well as a clear explanation of how and why the subscription continued to charge me after I canceled it so that this does not happen again.