telkom mobile offers nothing but bad service

This is not the first time it happens. They bill on the wrong dates when I'm not paid yet, and after that it requires me to take time off work to go to the bank and make payment manually. On the 9th of June I pay them and send them proof of payment only to have my line suspended on the 12th. Ridiculous. As I call in, the call centre agent tells me yes they can see my account is not in arrears but my line is suspended they will escalate the matter! That was at 9 am Friday morning, as I'm writing this report it's 5 PM and my line is still suspended, can't get through to the call centre it just rings an gets cut off!! As I said, this is NOT the first time and earlier an agent told me they have a lot of problems to deal with today so she cannot promise me urgent help. Now how ridiculous is that when I didn't even deserve to be cut off? I'm a real estate agent and basically my phone is what puts food on my table. I'm fed up with telkom!!!