Vodacom poor customer service

hi,

I signed up to a new contract with Vodacom taking up a combo deal with 2 phones at R500 a month. while the process to get the phones and sign up was quite smooth, things took a turn for the worse when I was billed for a connection fee which was not quoted to me over the phone. I asked the advisor who signed me up if there would be any additional costs to which she said no. this happened in august last year when I tried to insert my new sim into the phone. I've phoned on 3 separate occasions and was told a manager would get back but haven't heard from them. only getting sms's to pay my bills. I did not pay them a cent and told them they can take their phones back as I was missold but they refused that also. I am now using a prepaid sim in the phone and overall not a good experience after being with them for almost 3 years