Telkom handed me over even though I have paid

Paid my account, was then cut off. When I sent my proof of payment they reconnected me but have not updated my account and then handed me over to a debt collector. When I mail the accounts department with the email address provided by telkom support I get the following:

********** The recipient's mailbox is full and can't accept new messages at this stage. Message therefore not delivered. Please try resending this message later. [Telkom SA SOC Limited. Registration nr : ***]

Come now, this is disgusting service.