I was **** to by a sales person at discovery vitality

I was told if I join now I won't have to pay the 355 for 3months and if I still want to continue after the 3months I can do some and I will to pay.I was helped by the guy named Viney he called me on the 12th of April and later I got an email saying I will pay the 355,and now I want to cancel it cz I was **** to and if I am charged on my medical aid that 355 discovery vitality should refund me back my money because the sales person who helped me **** to me.

I am hoping to get response from you guys as I have sent an e-mail to discovery vitality 5days ago No one has called me or responded really not happy about this