Appalling customer experience from FNB Clearwater Mall

I did a cardless withdrawal on the 27th June 2019 for R7500, only R4000 came out of the ATM. I immediately went to FNB Clearwater Mall to report this. I was assured a dispute had been logged and that my query would be resolved in 48hrs. I asked the gentleman that was assisting me why I’m not getting a reference number or something to show I’ve put a dispute through. He said I shouldn’t worry it will to sent to my phone in an hour. No reference number was received by Saturday when I decided to even call the ***** department for assistance. Firstly with the ***** department I was put from one person to the other. Finally I was told there’s no dispute logged under my profile. I went back to FNB Clearwater mall yesterday, where I couldn’t get answers, I was made to wait for over an hour, where I was told the operations manager is looking into my case. I walked out there, yet again with nothing. When I asked it was said to me “sorry he\she busy at the tellers since the bank is closing now at 4pm. You can leave, we’ll call you this afternoon still to give you feedback.” It’s the next morning July the 2nd I’m still waiting. No call from FNB Clearwater mall. No communication from FNB. Nothing!