I am simply not interested and you you won't change my mind

When my "policy" failed to arrive when they promised it would, I got suspicious. If it wasn't for the fact that I know 3 people who have policies, I never would have given you my banking details. I actually feel very stupid now. BUT... I waited and waited for this policy to arrive so i could read through it - it was not emailed to me nor sent to me. It's only after I complained and said i was no longer interested, that I got a phone call (yesterday) and another consultant trying to sell me a slightly different package, and this time, with CASH BACK! Wow. Sounds good. Today - I get a delivery, of the OLD policy, that failed to arrive previously. I'm getting quite irritated now, because it seems like Platinum Life can get nothing right. I'm not even a customer yet (technically speaking), but they're already *****ing up and showing me their true colors. I'm scared they'll siphon money from my account - so I'm going to change banks to avoid this. I can clearly see the delay tactics, so that the 30 day "decide period" can lapse and i'm automatically charged. NO THANK YOU! I want it in writing, that you HAVE TAKEN MY DETAILS OFF YOUR SYSTEM, CANCEL WHATEVER IT IS I'M SIGNED UP FOR, and LEAVE ME THE HECK ALONE. I dont want to talk to anyone, I just want you to cancel. PERIOD. And after that, please leave me the hell alone.