Car track breach of contract

Car track goes into you bank account and debits your account earlier than your pay date, then they also go into your bank account and double debits for 1 month, when I found this I contacted them immediately as this resulted in my other debits not going off due car track debit 1 premium twice, they then say they can only refund what they toom incorrectly after 14 business days, so how many other account do they double debit monthly thinking people may not notice they when you query it they act as if they don't give a dam and then just don't refund your money that they stole from your account as your agreement in a single premium per month yet they just go and put 2 debits through and bare in mind I'm a car track customer for 9 years with 3 car track contract on 3 different vehicles the premiums are over R500 a month and they do things like this