Pathetic service

I called FNB to change the debit order dates on 2 of my smart devices, it was changed and I was advised that I will not pay for a month as this is how their system works. The money was deducted off my account, which was fine but in principal the incorrect information was given. I called them spoken to a guy which he was just not in the mood to assist and handed the phone to Stephanie, which I am still awaiting her call and when I call her, she is not available .... how surprising