CLEARANCE ON CREDIT BUREAU

I had a cellphone contract with MTN and i was paying the account then i had my challenges with paying the account then my account was handed over then i paid through the debit collectors VERICRED till i no longer owe the account then i got my paid up letter then i forwarded the paid up up letter to MTN then they did not respond when i requested for a feedback...i went to MTN yesterday then we called the customer care and then lady named Natasha advised that i need to wait because she doesn't have the solution for me but she wants to follow up with VERICRED and i can keep on checking with them / calling them for feedback as doesn't know the turnaround time and my name is not cleared on the credit bureau and it affects me so badly.