Cancel All Unauthorized Billings

I subscribed to ReelShort with my bank card on 2 October. After this, another amount was deducted from my card again on 16 October, even though I did not knowingly approve a second payment or any recurring billing. In total, ReelShort has taken about 234.94 Ghana cedis from my card. I am unable to reach ReelShort through their app or any clear customer service channel, so I have not been able to resolve this directly with the company. I request that all unauthorized or repeated charges be fully refunded to me and that any subscription, auto-renewal or future billing linked to my card be cancelled immediately. I also want written confirmation that no further deductions will be made from my card without my explicit consent.