Bad serves

Debit order going OFF on the WRONG DATE NOT ON THE AGREED DATE AND FOR THE PAST THREE MONTHS EVERY FRIDAY I HAVE BEEN CALLING AND I EVEN WENT SILVERTON NEDBANK HOPING TO GET HELP BUT THEY GAVE ME A PHONE TO SPEAK TO THE SAME PPL THAT KEEP TELLING ME ITS SORTED ITS SORTEDAND THEY KEPT TELLING ME NEXT IT WILL GO OFF ON THE AGREED DATE THAT I APPROVED ON THE DEBIT CHECK THAT IS SATURDAY NOT TUESDAY AND THURSDAY ON WEEKLY BASIS