Discovery disgusting sales techniques

Spoke to 2 consultants, the first one tried to mis-sell me a product, PURPOSEFULLY, after asking him if the call is recorded so they can listen, he changes his story. Next consultant blatantly just signed me up for the premium Vitality membership at R370 per month even though I did not agree to it, in fact I outright said I DO NOT WANT IT. If I had not opened my emails and the file attached I would not have known about it and thought it was just the benefits she sent me as I asked for. I was also promised a manager would call me back after I spent 25mins on the line to cancel something I didn't agree to. TWO DAYS LATER AND NOTHING