One teller operational at bryanston shopping centre

Poor service at bryanston shopping Centre FNB. We use this bank weekly and every week it is the same problem. One teller operating and no one can give reasons to why there is only one teller yet so many employees in the branch. Queues are long especially when some clients are doing multiple deposits which is time consuming, yet no assistance from any employee, even after informing the manager and assistance manager at the branch. I think it's time this branch jake up and either employ more tellers or get the tellers to be at their desks working, especially during rush hours such as lunch hour.