FNB holds me hostage and won't close my account

Your chat operators are *****S - your customer service is ****. I have requested that you CLOSE my bank account more than a MONTH ago and STILL you didn't close it and still you charge me banking fees. My reference number is CAS-***6-MOW7M5 I expect you to refund my last month's banking fees and I expect you to close my account IMMEDIATELY. On the 6th of July your ***** chat operators told me the account would be closed in 6 hours - it's been 19 DAYS and it is still open. And YES - I used CURSE WORD so ****ing what! We have free speech in this country and if you give me *** service I'm going to TELL YOU YOU'RE ***!