passing the buck

Atm assistant called me a ******** over someone he normally see at the branch then called back up securities to get me dragged out of the branch because I don't own the atm. my dispute was that the guy jumped the queue and the fnb atm assistant was helping him do that. The end result I got assaulted by the back up securities. the matter got escalated to the branch manager in Carlton centre of the incident that occurred in December 18th 2017 up to today the matter has been silenced. my last interaction with the bank they simply told me that it was not their securities that assaulted me so I should deal with them not fnb. So my question is if someone calls securities (fnb or subcontractors)to deal with a"********" then the so called ******** was not at the wrong,Fnb is innocent in this matter? they apologise for wat happened to me but still saying they not responsible for the end result.To this current date not even one person called me to close the complain nor even send me a formal apology in writting or am I still that African "********" I was characterized to be so my complain does not matter ?