Supervisors are slaving employees

I'm a loyal customer of Toy Kingdom Menlyn Mall, I go there almost everyday to shop but every time I get there. I find staff members being mistreated and if labor people goes there, it will be a problem to the company, how supervisors treat their employees is every unacceptable. Monica and Salaminah are always shouting at staff aggressively before customers and even go to a point that staff must scrub the floor everytime customers leave