Pathetic service

I joined the que at Bidvest bank workshop Durban and after standing in the que for about 20 minutes a staff member comes out and advises us he gave a board to someone in the que to say she is the last person they are going to see to. We were not aware and have been turned away and told they close at 5pm and I have been in the que from just after 4pm. There is no staff member walking the que and letting us know they are not taking anymore clients. Terrible service.