Consultant app**** and billed me when I only wanted to know if I'm acceptable

A consultant convinced me about the HL insurance at PicknPay Nkomo Village today, initially told me that she only needs my details to see if I qualify for it, to which I accepted and that I'll think about it in the near future as I currently couldn't due to the payment options being limited in my case. I trusted her because she showed me some evidence of authenticity and she was recording the consultation.

Little did I know that she stopped recording at the critical moment of my doubting and was actually applying me into the insurance and I had to pay for the policy the moment I had to pay at the till because "it was already activated". I did, yes because I was on borrowed time in the store, but I want to cancel as I did not want to apply for it today and I want a refund whilst it's still day one of my 31 day cooling off period.