ATM crashed and my Money was debited

I withdrew money on 28/11/2015. The ATM rebooted while processing my request. I never received the money but it was taken from my account. I emailed, called and visited the branch. I filled in an ATM dispute form. I contacted the complaints department, yet I still haven't received my money. I was redirected from department to department. I received a call from someone on 01/12/2015 stating that someone will call me back the next day, but this didn't happen. Today is the 03/12/2015 and I'm still waiting. I have lost trust in my bank and that is not a good feeling. Clearly, my problem is not priority as nobody has bothered further. I gave them ample opportunity to recover the service and restore the trust but this is definitely NOT going to happen. I hope that people see my post and make informed decisions about FNB bank... Hopefully, this time, I will be assisted in a proper way