No response still after 4 months?

Really unhappy and upset... I've reported a ***** case to Vodacom in January and it's approaching the end of April and still nothing has been done about it? Someone had upgraded online on my number and I'm still waiting for this to be fixed? This is ridiculous, I've been a loyal customer for 16 years with the same number and I get treated like this? All this money I'm paying every month for something I don't have? And not even once gotten any responses or feedbacks about \case".... what a joke maybe it's time to change service providers cause clearly Vodacom does not care about customer service!!!!! """