Authorise additional service charge

You charged an additional R34.99 for their so called "SecureFire" service starting 1 Aug2023 and R58 in July A service which I never opted for and it's debited without my authorisation. I called your help desk and was promised it will be escalated and someone will call me back the following day. It's 3 weeks later still not call and yesterday debited the same amount instead of R745 that I signed for. Can you please cancel my contract as I cannot deal with a service provider who cannot honour their part of the agreement. I will be reversing all these 3 debit orders until you decide to do the right thing but also cancel my contract and will find better service eslewhere