After Sales Service : Very very Poor and Disappointing

I have been trying since the 1 October to sort out an incorrect order for a wifi contract I was pushed into which I was told would be so great for me, turned out not so as it was a home internet, no they did not say please note this is not what youve always had, its not a pocket device. The home internet is useless to me as I've always used a pocket one as move around a lot. Since the 1st October I've been trying to get Vodacom to collect their device and return my contract to as it was before. Taking into account that for two weeks I've has no wifi and have had to buy data. I've followed up again and again. Also no sms's to say we are busy with your dispute and collection. I've been a customer with Vodacom for more years than I can remember. I am so disappointed and fed up as I still wait on them. Totally unacceptable.