Improper cancellation

I had motor and household insurance with AForbes which I took out myself with you. At a later stage my husband wanted us to get a broker of which we did, over time we were unhappy with the broker wanted her cancelled from our insurance, we were told by AForbes the only way to cancel the broker was to cancel the policy and load a new one which I did as instructed. was assisted getting a new policy by Jaun Van Der Merwe. when it came to end of the month AForbes debited me almost double my old policy premium and debited me for my new policy. Jaun advised this was an error on their side and confirmed that I could reverse the debit made from my old policy which I did. after a few days Renee Fearn sends me an email advising I have no cover as I stopped payment on my new policy. I explained to her it was the old policy payment stopped and she said no. even after sending the communication. I then received a letter from Renee signed by Trevor Steele advising they are cancelling my insurance immediately and then it was changed to 01 April 2019. I have asked for an explanation as to why this decision to cancel my insurance was taken, Trevor Steele is unable to give me feedback. I have other policies with AForbes, everything I have done was as instructed by your consultants, I have never missed a payment, I think I deserve to know why AForbes decided to cancel my insurance because of errors and mistakes made from your side.