Worst Customer Service Ever

I have been having problems with them since day one. First they delivered to the wrong address they delivered to Gauteng instead of Cape Town . After two weeks we received our router after having to follow up the whole time. After the first month they did not deduct, second month still nothing, only after the 3rd month that we had to phone in and ask what is going on, then they advised payment needs to be made after how many phone calls to them and asking for the banking details, which they had wrong, We made payment arrangements and they still could not debit the correct amounts, again after numerous phone calls and re-submitting the debit forms. I made payment as I was scared they will not make a debit order payment so we paid R800.00 for October and the month after they eventually got it wright by deducting the correct amount in November. Two days after debit order came off, they suspended my line. Saying that the R800.00 was unpaid and I should have not made a payment, I should have waited for the debit order, Now they want me to pay another R870.00 to reactivate my line. It is their fault in the first place why I hade to make arrangements and now I am getting penalized for it, I hold for 40 minutes to speak to managers but they are always in meetings and they promise to contact you back and they never do, just empty promises. They just don't care about their customers.