Vodacom poor customer care, the worst ever

We upgrade our data line in June this year and we took the Alcatel think hub, the modem never worked and was changed already twice. Now the operater is telling me about a back logg in the back office and the sim card. Yet I am paying every month for a product that is not working and vodacom is making me run around like a crazy person. I am not happy my money is never in arrears or short or broken and yet no attemp from vodacom to solve my issue Spoke to an operator and he told me to call another department then he droped the phone in my ear wonderfull really how vodacom treats frustrated customers