Vodacom is unprofessional

I had an issue with Vodacom since January where I was billed for 5 GB data which I didn't know about and was activated without my approval. After reporting the matter to hello peter last month, I finally got my refund of R658.98. However, yesterday the 30th of July, they debited R990 in my account. I have one contract with Vodacom and they need to debit R260 for cell number ***. It seems now they took back the R658.98 that they refunded me. I am tired with the nonsense from Vodacom, I can't deal with this company anymore. Please explain exactly what is happening because your customer care, accounts department and cancellation departments are just useless and sending customers from pillar to post. No one know who needs to correct this mess happening. Please sort out this misunderstanding urgently, because I can't wait to cancel the contract I have with you. I want nothing to do with you.