Very Bad Vodacom service and query still not resolved

I lodged a Complaint Via Vodacom and still has not been resolved, although i have now been billed and not even used the phone, I requested that they go and listen to the voice recording on what the sales lady has sold me and what i got was totally different, Then when i requested they cancel the contract they said that they could not do this as this was after the 14 day period although from when the phone was actually delivered on the 23rd and activated on the 25th only, I went to the Vodashop just after this period to find out they cannot do a dual Simcard service hy was this then sold to me, I have been a local Vodacom customer for over 25 years with them, and now sit with 2 simcards i cannot use, The person that phoned me when i lodged the first complaint was not helpful at all, and not friendly or compasionate at all. Just saying sorry i should have known.. but i go on what the sales lady tells me and now they dont even want to cancel this contract!! I want answers! It has been 4 days now again and no reply since i have asked to listen to my voice recording!