new queing system

Nedbank your new quing system does not work. I have complained time and again about this. It is no good. At Randburg you cant see the tellers and they cant see you. People skip the queue and the numbering system keeps recalling numbers of people that left the queue Wasting time. Same as at Cresta. Once the person leaves the queue the numbering system calls the number then waits 5 minutes before calling the next. Time after time. The number does not get cancelled. Then I saw something really disgusting 2 people in forex queue. One goes to forex counter and stays for half an hour. Then leaves and so does the teller. The lady had to wait another half an hour for the teller!!! As she comes back she calls a couple forward without doing the number system skipping the lady that has now been waiting 1 hour. Yes the other couple was for forex but how does this work. Are some people more important than others. Nedbank wont let me skip the queue but some how some customers are more valuable??? Was this other lady upset. She went to the counter and made the couple leave. Strangely the other couple was very upset about this and left the bank. Well done Nedbank.