Poor Service

I was in the Atm Queue for Over 30 minutes, while there were four operational Atm's all dedicated for deposits, and I cordially request the Branch Manager to reserve one Atm for withdrawal like they do at other branches, she was rude and flatly denied my request hence myself and other clients were unnecessarily inconvenienced for no reason, I was very disappointed by such poor service from a bank that claims in their advert that How can we Help you, they don't leave their slogan