POOR SERVICE/ RESPONSE & INCORRECT BILLING BY M-WEB ACCOUNTS DEPARTMENT

I had an installment done at my complex by Vumatel, after which I contacted a rep from M-Web last October 2017. At the time, there was a promo: I was assured by my Mweb rep that I didn't have to pay installation and connection fee. The option I had signed up for on my contract, was for a monthly fee of R799 uncapped. So on my first installment, I was debited with an amount of R2179. This didn't make sense at all. I called the rep, and he escalated it. I complained again after I noted that I would be debited with an amount which was incorrectly charged to my account. (In the back and forth on my query, I was told I was supposed to have been debited an adhoc amount plus the R799 installment). To date, my refund has still not been paid. The R2179 debit was far more than two months worth of installments; never mind the adhoc amount! I am being debited an installment of over R1100 a month, which was not the agreement. I am appalled that Mweb has to date, not carried out the promised refund; plus I'm being over-charged, therefore Mweb is breaching my contractual agreement with them.