Failed service delivery

So i installed fiber and decided to switch off my Rain. From 1 June i never used their services and to my surprise the debited my account. I called in, in July to ask why i was debited and they said i should have canceled. On the call the guy that assisted me said that we would escalate and request an immediate cancelation so that my account won't be debited 1 August. Guess what? 1 August another R499 was debited. They failed to keep their promise and that guy failed to follow up with me like he said he would. I want my money back immediately. I don't want stories