Canceling LTE account

This has honestly been the worst experience ever. I went in and signed the cancellation form, I thought all was well. I then get charged an additional 2 more months, the service is still going, I go in to say there has been a mistake and the lady Katlego working at Menlyn Telkom on 28/09/2017 says that my account can't be canceled when its in debt when the form clearly says it will send the final invoice to your email address, what are you supposed to have credit in your account to cancel it? STUPID. There is a reason there is interest rate. ITS FOR WHEN YOU HAVE DEBT. She says my account is now canceled but I will keep being charged as if its not canceled and I will keep getting interest rate on the amount. I interacted with 2 employees that said 2 completely different things.

This is the worst company I have ever dealt with, 0 consistency throughout their company. Shocking service with rude employees.