Attend customers

Nedbank consultants at maitland street branch are chatting to one another whilist customers are standing in long quese, they are not attending to customers, and some of us are at work and need to go back to the office, now we shuld wait for them as if we are there to beg, should we go and take our money to other banks because of this? Its really fraustrating. Please Managers should address this, its the 5th time now this is happening