Trying to update debit order dat for over a month

I have been trying to update my debit order for my loan repayment for probably about a month. Literally every rime someone calls I get a different story. Friday someone called me to rescedule the date only for her system not to allow her to do it, so yet again, nothing. I requested this in August already amd was assured it was done yet they still took the funds on the old date. I really cannot comprehend how it is so difficult to do something so simple. At this point I am considering consilating it and taking up the finance with Absa