Auto & General is debiting our accounts without approval

I have a big problem with this company. A few weeks ago I asked a broker by the name of Musa Bongu, who I assumed was a broker for Old Mutual to give me a quote for insurance because I was interested in purchasing a new vehicle. Musa had previously assisted me with getting my insurance with Old Mutual so he has access to my profile. Before I knew it Auto and General debits my account without me agreeing to any policy with them or with Musa Bongu the broker. I explain this to Musa and ask why he gives people my account number and allows them to debit my account for insurance I never agreed to. He tells me it must have been a mistake he will sort it out. Till now nothing has been done, I receive a call from Akhona who works for Auto & General. I explain to her what happened. She could not even tell me which car is covered, what is the registration? where does it park? what type of insurance it is? I ask her to stop this because I do not have any policy with them, I do not even have any policy schedule documents. I asked them to stop whatever is going on and to my surprise Auto and General tried to debit my account again yesterday and now I am fed up. because I need to pay my bank for reversal fees and take time out of my schedule to fix their ******** activities actioned in my account. I am amazed that such a well known company could be so ***********. Debiting people's accounts without any approval from them is ******* and immoral. I wouldn't recommend this company to any one and I will also be contacting their complaints department to report this ******** broker and this company!!