Momentum just take your money out of your account

I Derrick Duckles was interested in getting a quote on car insurance as my current rate had gone up a lot. Momentum got hold of me and I got a quote. The quote was very promising all that was left was that i needed to cancel my current insurance and get an assessment which was a requirement of momentum. I was changing jobs and had to put the process on hold for a while. Come the end of the month the momentum premium was debited from my account without my consent. I then called them up and laid a complaint of which I was told it would be investigated and they would call me back, they didn't. I called again and went through the same procedure. They said they would call me back, again they didn't. Come the end of this month again i was debited the premium of which i was promised it would not happen.... Each month i have been debited over R1000 and i am yet to be called or refunded