Disputing charged and to be refunded

This is a worst *********** bank ever,*******! I hate it! On the 16th June 2018, I made a purchase using my card, I swiped and immeditely received an sms notification of available balance.On the 19th I withdrew cash at the ATM, same happened as usual I received an sms notification of available balance. Then on the 21st I had money deposited into my account and I received an sms notification but the available balance didnt make sense, I immediately checked the statement via Nedbank money app..booom! to my suprise I was charged two 90 rands (R180) as 'Hon fee' and my money was short of R 458.18+ R180 of so called ' Hon fee' I contacted the called center however I didnt get the answers. I then went to Nedbank branch in Fox str JHB, it was in the morning when I went there, the consultant then said ge will escalate it and I should receive a call during the cause of the day, that never happened, then I went back before end busisness to the very same consultant, he then referred me to the team leader by the name of Jade.I explained to her what happened and I showed her the sms notifications I received during the transactions i made prior. Jade gave me a nonsese story that 'a cheque account has a floor limit of R1000 if theres insufficient funds on the account you can use a minimum of R1000 then the bank will charge you R90' I said to her thats nonsense because when I made a purchase on the 16 June and I received an sms notification immediately after I swiped my card for available balance of R 2456 so theres was funds in my account and when I withdrew money on the 19 June immediately I received an sms notification that available balance its R56 so how come Im being charged twice for the transactions I made on the 16th and two 90 rands? She couldn't give me an explanation because I showed her proof of my sms notification, she then said she will escalate it to the relevant department. NO FEEDBACK RECEIVED! IM STILL WAITING.NEDBANK I wont rest until I get my money back, you are ****** and have *********** system and *********** staff. I banked with FNB before I have never experienced this, I have a capitec account I have never ever experienced this nonsense. What is the nonsense story of ' cheque account floor limit' and why is not said and transparent to the clients? If I wanted an overdraft I was gonna apply for it. I am going to escalate this further to the BANKING OMBUDSMEN and the FSB.