Pre billed for something I do not have

On 7 December I app**** for a data line. On 18 December the line was installed but had to be converted to a data line. On 24 December Nicole told me that her manager has escalated the matter and it would be done asap. On 23rd AM Zinhle told me the line was done and closed off. I tested it, it was not done. I contacted Telkom again on 23rd 15 minutes later and N Nzimande told me she does not know why Telkom consultants lie but it was not done yet. She would escalate the matter and gave me a reference number 805300 which when I called again two days later, did not exist. It was sucked out of her thumb. The I contacted Telkom twice a day on the chat line since and on 6 January, once again I was told it is working, and again it was not. I contacted Telkom daily after that and on 13th I was told that I am first in the queue to be fixed. Today is the 17th and still no line, however, I have been billed by Telkom. When I contacted the billing department, they said they would credit me when I, understand, I let them know the line is working. I have to once again, hold on for ever, waste my money to let them now what is going on in their company between departments.