Cancellation

Now is my 4th time complaining about cancelling some of my mother's vodacom number that are not working. Till today vodacom still busy cancelling them. I don't how long it takes. Vodacom customer service is very poor. My mother is pensioner how can she pay R3000 on her contracts just for vodacom only this is ******* or what can i call it f#ck. I sick and tired of vodacom.