DEBIT ORDER DATE BEING WRONG

Good Day,<br> <br> I don't know who gave permission to FNB to deduct the debit order on the 25th of each month. We gave spesific instrucitons that it must be deducted on the 27 of each month. <br> <br> I've tried contacting them numerous times via e-mail, but nobody is giving me feedback.<br> <br> Now every month and I am not sure for how long this is happening, I can only draw statements for 3 months, I see that they are trying to deduct money on the 25th of each month. What I want to know who is going to refund us for the debit order being unsucsefull every time. It's R187.00 each month. So if you start caluclatiing for each month, how much money is it that we are losing, of them being incompentent and ******** by not contacting us back?