Horrible service by telkom. Don't recommend at all

Telkom is the worst service provider ever! I took out a contract with Telkom for a phone, on the 28th August I requested a settlement amount in order to pay off the contract and close it, I was given the amount I needed to pay, paid the R15 100, and I was told the account is closed. On the 04th of October I received an invoice from Telkom stating that I had a credit amount, I called in for my refund same day, I was told my contract was not closed and I had to call on Monday to have it closed. Telkom's customer care is a nightmare, I waited on the line for over an hour only for the agent to hang up on me, called in again waited for an additional hour, then I was told I will be transferred to cancellation department, after waiting on the line for an hour the agent who answered asked for my details then hang up, called in the 3rd time and I was informed that the R15 100 that I paid was not allocated as a settlement of the account but as a monthly payment, the money allocated as an advance payment on the account and not as a settlement like I requested. Then I was told that I need to wait until the end of November before they can cancel my contract. What??? I would never recommend telkom, it's the worst telecom provider.