Double debits monthly!

I am very dissatisfied with the service I have been receiving with Wesbank's Insurance partner Auto & General. In April I was informed that my insurance premium on my bundled insurance through my finance increased by more than 10%. When I requested them to review the policy they had a consultant contact me that changed the policy to a more affordable option, not bundled. I was then debited at the end of June for BOTH these policies. I had to wait a week for a refund. And AGAIN I was debited for BOTH at the end of July. Now I have to wait on a refund AGAIN! This is ridiculous! I cannot have this happen every month. Funds are debited from my account erroneously and I have to be out of pocket for several days. This is very inconvenient and to say the very least very bad service.