I got a contract for 2 cars and the monthly payment on the debit order is R198

I got a contract for 2 cars and the monthly payment on the debit order is R198 .Capitec deduct R210 and then R198 from my account. The debit order was arranged for the 7th of each month .This month the debit order was charged by Cartrack to R210 ,for no reason. One of the ladies working in the financial department of Cartrack, LOBOLO, help me to sort the problem. I am very proud of her .