FNB has becoming a bad service bank

i went to the branch to close my smart account on the 13 April 2016, but i was told that they cant as my account is under Risk 03, as they said as i was under debt Review in 2011 but in 2012 i have cancleed that i'm debt free, last year i wanted to open up a cheque account they refused me even though my credit report looks so good , they telling me about 2011 in 2015, which i didnt mind them, i left went to open my cheque account to another bank and moved all my saving on 32 days, so now i want to close that account they are trefusing me, like seriosly, what the hell ist going with FNB, i mean i', not hearing good things about them anymore..... they used to be such a lovely and a good service bank....and i will be closing all my accounts, mys son's, my business and my investment, they dont any clients....since the 14 April 2016....with reference e number 905137, im still waiting even just a courtey call, i have called myself last week, on so called "we care complaints Resolution"but the consultant said they would call me she was going to escalte the matter, as i want solution becuae that account is busy generating bank charges and whose going to pay for that.......i dont owe FNB anything but honestly why they don treat me like these, i want nothing to do with FNB........they have lost respect from and many other clients. Can someone solve this problem as i'm tired of being taken from one place to another. and even if i was under debt review was this smart account part of my debt at that time? is there any fees oustanding on this account, what are the procedures of closing account, that account was only woing R12.00 on the 13 April 2016. so what is the problem.....what kind of nonsense in this......you can keep your cheque accounts and your credit i really dont care but i want that account closed as i dont owe you anything.........your service is very bad.