un necessary Charges for changing my pay date

I have just called ABSA TO reset my debit order from the 25th to the 28th, and you are going to add R20.00 to my installment that is just day light ******* i have not moved to a new month I am still within the same month? I asked the call centre agent to explain how much interest you charge me daily he failed to explain that.<br> <br> secondly I also asked him to debit my account on the 21st of December as I will be paid earlier he said he can do it but I must call back in January 2016 to reset my pay date to the 28th? <br> what kind of service is that ? <br> why cant he debit on the 21st than he must take the initiative to debit my account on the 28th in future? all calls are recorded surely he could have provided a better service than that.<br> <br> Please provide me with detailed feedback as to why i must be punished with an additional cost of R20.00 PM for changing my pay date since I got a new JOB ?????... so you telling me I am not allowed to have another Job? <br> <br> Please attend to my December pay date issue as well..