Hong Leong Bank review: transferred the good service and high efficiency staff out of the priority banking

I would like to compliment Ms Joanne Wong for her good service and high efficiency. Eventhough, only 1 staff in Priority Banking, and she always have to walk to downstairs to get another officer signature. She still can manage it very well. Unfortunately, Ms Wong was transferred out of the department and replaced by a low efficiency staff. Now the service provided by P.B. is even slower than normal banking. What is the purpose for Priority banking?