Unsatisfied customer

I had a contract with Telkom for a WiFi connection. They just stopped taking payments. I asked them as to why and they said they will reinstate debit orders and debit on last day of them month instead the 25th as agreed on at the inception of the contract. It was a system issue which occurred on their side. I made payments online of R495 as I've incurred additional charges. Three days later my WiFi was canceled with no explanation.

I called plenty of times to get it sorted out and visited their stores. They all promise a call back and never call.

Last Thursday, they promised to call me back again before 10pm I'm still waiting on them.

They have debited R4385.93 on the 16th of December which was not agreed upon or never bothered to tell me of it before hand. I can't reverse this with my bank. This isn't the first time they took over R3k off my account twice before. Every time I called them to discuss a payment plan since they don't want to reinstate a contract they canceled. I sent emails and smses too. No response.

They have placed me on financial detriment.