Just adding R858 to my monthly vehicle premium for unauthorised insurance

My vehicle is financed through Absa, for over a year I have been debited the same amount, not once having defaulted. Part of the contract when purchasing the vehicle was to have comprehensive insurance before I could even take the car from the dealership. This was provided along with my contact and banking details. This month there is suddenly an increase of R856.08. 40 minutes on the phone to the call center being pushed from department to department i am told that this is insurance as they have no record of my private insurance. But yet miraculously you have my bank details still? If you have the contract where i apparently signed for a 6 monthly review of insurance then why do you not have my contact details? Why did this not happen then 6 months ago? I expect this sorted out and refunded ASAP I have emailed the AIP email address given to me by the call center but not response, not even an auto response