Disgusting service from FNB

I'm beyond frustrated with FNB and their customer service, especially their rude consultant Kabelo Gumbi who thinks he's dominate and can speak over people, he's attitude is disgusting. Also, I was charged for a debit order on an incorrect date because they failed to make the necessary changes on their side. I was transferred from department to department and was given inconsistent or different information that makes me even more frustrated. I am inconvenienced because the money that was debited was suppose to be used for something else and nothing was ever mentioned by the lady who changed the date about it going on the 26th, she said it would debit on the last day of the month and that's it. Please don't even try me by debiting on the 30th! The consultants I spoke on the collecting department said it wouldn't go on the 30th of September cos it already went on the 26th and that better be the case.