false selling

I would like to cancel an order that to my surprise is processed without even concluding the deal, firstly the guy called me by the name of Sibusiso / or siyabulelwa and asked if im interested in anything of which I said yes im interested in a smart tv ( HISENSE ) 65” UHD LED 6K of which he confirmed that yes its in stock. But I asked him to call the next day being today so that I can go and do my home work properly in terms of pricing and which smart tv can I go with. The guy indeed called today and I confirmed to him that I am specifically looking for a 65” inch hisense and I repeated numerous time that 65” not 55” inch which he also confirmed with me that “yes indeed 65” not 55”. And they do have it in stock. So after asking a few questions I started discovering that a few things were not making sense : an insurance is added without my consent of which he was supposed to ask me weather if im interested on taking up the insurance, which is false selling. Secondly we agreed upon a 24 months repayment plan but now I see on the confirmation of my order that the term is 36 months and we didn’t even conclude the contract he just hang up on me, and he never tried to call back like he was the whole day when he was looking for a sale. And please im requesting that recorded call ( conversation ) because call are recorded for security purposes And if im not getting any response within 24hours that the order has been cancelled, I promise to take this matter further of which I hope homechoice wouldn’t want their reputation to be ruined by a non complaint sales agent.