Cancelled policy premium debited from bank account for 5 months.

I cancelled my car insurance with iWyze in Jan 2019. Subsequent to that premiums were debited from my bank account for 5 months. I queried this and was only reimbursed a portion of the money *******ly debited from my bank account. When I queried the rest of the amount owed to me, I received no response to my emails. A number of emails were sent to the complaints departments and have not been attended to. I am beyond frustrated with iWyze and immediately request for my refund to be paid back to me. I will not be subject to such ******ion.