funds deducted even though policy has been cancelled

i had a vehicle insurance with momentum and was not happy with regard to their service i called the customer care line three times to cancel my policy every time i spoke with a consultant that i wanted to terminate my policy i was placed on hold until the network provider cuts off the call i sent an e mail confirming my cancellation to my suprise they have been deducting money from my bank account for the past four months and i only get e mails from them that they will terminate my policy since they are not receiving premiums for my car insurance. this is frustrating and ruining my credit profile because they change their reference number every time they deduct funds from my account i regret and would not advice anyone to take up any sort of policy they provide since they only care about money not their clients.