Poor service delivery

Worst service ever at Moorreesburg Western Cape, on 02/10/2019 my mother in law had trouble withdrawing her old age pension from SASSA,so she had to go to the post office, the lady assisting that morning wasn't eager at all, she has a huge problem with client service, she was not capable to help in any way, it seemed she'd rather close the door and have no public enter that day, it is uncalled, this particular lady have a personality problem, when they were off line she was a very happy employee, now that she must assist the public its a burden,i am very disappointed in the service,not in general because the other employees are friendly, helpful,and eager to assist