R5000 deducted from my acc and still no refund

I sent FNB an email to increase my monthly instalment from R771 to R1000.00 so that I am able to finish my account and settle it, I got an email from FNB confirming that a debit order of R1000 has been loaded <br> <br> Surprisingly, on the 25th , i got a notification that they deducted more than what i requested them! An amount of R 5000.00 was deducted from my account and i called on the 27th July and a collections agent told me that it was loaded incorrectly, they will refund me the money <br> <br> I was expecting the money to be paid into my account from 28th July, it was never paid , my other accounts are not paid because of this inconvenience<br> <br> I have been calling and they have been telling me the same thing that i will get my money back <br> <br> I just called now spoke to Thato and requested to speak to her manager and she got me to speak with Madeline who is a team leader and couldn't give me proper answers about my refund and money<br> <br> She was rude, interfered me when speaking, unprofessional and definitely not literate<br> <br> I want my money!!!!!! <br>