Nonsense rules from Capitec

I think my journey with Capitec needs to come to an end. I have an account and had to change it once because because of debit orders that were going off my account that I did not authorize. This month I've had 2 debit orders that went through my account and when I called to reverse I am told I cannot reverse them, I need to contact these companies because I authorized them. How can I speak to people I have never had arrangements with? This is really unfair and darn right irritating because it's my hard earned money.