Paid up letter from Telkom not being provided.

My account was recently in arrears and handed over to their collections department, when I called to make arrangements for the payment with one of the agents from their collections department, I was informed that if I paid the outstanding amount I could get a paid up letter after the payment was received after two business days. I paid the outstanding amount in full on Sunday and when I called in today, two business days later I was informed by one of their agents (Amanda) that the amount was not received on their side and that it would take 7 to 10 business days for them to receive the payment, I really need the paid up letter for the account as the arrears on my name are adversely affecting my job. I'm complaining because certain assurances were made by the agents I spoke to as I constantly asked if their turn around times for payments would stand at two business days.