Mobile Account Suspended - Paid In FULL!

So Telkom Mobile decided to suspend my account and then hand it over to collections after missing one payment. I called them to inform them that I changed jobs so there was an issue with my salary payment which will be sorted in a week. I was told there is nothing they can do, my number will be suspended and handed over to collections (AFTER ONE MISSED INSTALLMENT). After suspending my account, a week later as agreed, they debited my account for the full amount due BUT my number is still suspended. I have called them on numerous occasions and they tell me I just have to wait for their system. I asked if I could take my bank statement in to confirm payment went through and I was told that this isn't possible. I was then told I need to wait an additional 7 - 10 working days for my line to be activated... This is unacceptable, I cannot use my cellphone at all even after this account is paid in full and up to date. When I asked to speak to a manager I was put on hold and nobody came to assist. Disgusting service!!!!