Money taken from my account without my concern

MIWAY consultant called me previously requesting me to give her opportunity to give me qoute on my car. We had discussions and I indicated to her that I must first talk to my current ensurer to try reduce premium cause I have worked with them for sometime and I am not willing to move to a new company with new challenges and stress. I think last month if not April they called me again saying that they want to help me cancel my current ensurer so that I can continue with them and I said NO. To my suprise this month June, MIWAY deducted R583.21 (***) from my account without my concern and permission. Outsurance also deducted money from my account this month for the same car as agreed. Question is why should I pay double for same car. What I need now is for MIWAY to refund my money up to the last cent back into my account as sson as possible. Furthermore I don't want anything from them they have shown me a bad side of them.