Contract ended without notice, telkom does not care

I was not loaded with data at the begining of the month after investigating the problem I found no data is on the sim card, when phoning Telkom they explained that the sim is a prepaid. After explaining that the sim was just recently upgraded they said they dont know as that number is not part of my invoicing and they will send my invoice for me to see (still awaiting this)

when confirming that the sim was in a fact prepaid I phoned back to have this issue resolved the consultant continuously put me on hold looking for a supervisor or superior to assist her, she was not able to see the agreement on her end so i recommended that I mail her the agreement.

She sent me a blank mail to which I could mail the agreement to, which I did.

I've sent the agreement I signed to Motsei Mathobela to show that I have in fact signed a 24 month contract with them.

I tried to follow up what is happening with the request but the call centre continues to end the call as soon as I explain to them what is happening