Ilegal deduction from bank account after cancellation of policy

I joined the IFA, part of Clientele earlier the year, which meant that I had to also take out a policy (a simple funeral policy) In August 2017, I cancelled the policy as well as the IFA partnership. Deduction for this stopped, but all of a sudden they started deducting a new amount with a new policy number from my account (this time a Wealth plan of which I had no knowledge applying for). I queried this, after numerous calls I kept being told that I will receive a call, first consultant said 24 - 48 hours, next said 7 working days, next said 14 days. At last I received a call 17 days later, with an investigator demanding an affidavit stating my query and 3 sample signatures otherwise they cannot investigate further. I demanded that I want the policy documentation where I authorised this policy to be deducted off my bank account, and this person said that they are not allowed to forward me anything until they receive the information they requested. My question is...since when am I not allowed to request any documentation that I am paying for? My application with the IFA does have my signature on yes, but when I cancelled all these, who gave Clientele the right to issue me (if it is mine) with another policy? And deducting this money from my bank account without my authorization? Is this not seen as *****? Am I not allowed to make any demands, seeing that it was my money that was taken for something I did not authorise? They are quick to take my money from my bank account, but I have to wait on them to investigate and listen to what a huge backlog the investigation department has, which off course has me worried...meaning that I probably are not the only ********** case that is being handled. I want my money refunded into my bank account! I did not ask, sign or receive any new policy documentation, did not give permission for any deductions for a Wealth Plan from my bank account,so as far as I am concerned this is *****. I have waited long enough for this to be resolved, so now I would like an immediate solution...pay back my money!