Deduction of funds

I called the supplier to provide me a quotation for my vehicle I later accepted the off on the 4th of August. I then subsequently to that called the supplier to tell them that I will no longer be taking their insurance and sent written correspondence to this effect the person responsible told me they had canceled the insurance on their side and seeing as though I had not done car inspections they will not be deducting the money. I later on called to confirm the insurance was canceled and the sales representative confirmed. Today I find myself having paid for the insurance even though it was canceled well in advance and had not done any car inspections for first for women.