The MOST Disgusting service ive ever received

i sent an email to fnb 2 weeks with a simple request for a call back, i then was transferred from pillar to post and auto responses and my query was just not being escalated to the right department after the 10th email that i sent someone finally called me back i then requuetsed that i wanted them to collect the amounts that i owe the guy called ruben then said hed send and email i requested that they respond to my email to confirm on monday already i only got a response today saying that they are not able to collect from an external bank account which is fine i then requested that the ruben get a more senior consultant to assist me as i cannot accept that it took him 3 days to respond to my email i then got a call form a lady called catherine julius who was very rude as i requested that she calls me at 1 she then refused and even had the audacity to tell me shes not sure that she will be available at that time this is totally unacceptable service that i have to beg you damn people to give me a simple call for assistance!!!