Did not stop charging fee after cancellation

The internet service from Telkom was unstable and slow and so we decided to change to another company. After going in-store to cancel the service on 20th of January, they said that our data would be canceled (Ref no.AI***) with a months notice, meaning we would still be charged for the month of February. However, we were also charged for months March, April as well as May DESPITE our many visits in store to confirm the cancellation as well as phone calls to the office to confirm that our data was cancelled. When we visited the store about two weeks ago, they confirmed that there would be no more charge (again), but told us that our refund would have to go through another department and that a complaint was filed. <br> <br> How is this different than an act of theft if we have cancelled our services and are no longer using their resources but they are still charging us money? How is this even fair? And why does the refund have to go through another department. The inefficiency of this company really is disgraceful to this country. I beg and implore people who are reading this to either never use Telkom or to be very careful when choosing teir services.