Bully supervisor

Game rosebank has the most un professional supervisor who curses cashiers in front of customers, what i witnessed yesterday was shocking, the way this dudu from her name tag, spoke to this cashier who always serves us with a warm smile and always asks us about our shopping experience and all, tore my heart to pieces, if this is how you treat your members of staff im greatly dissapointed, that supervisor needs to do more training or go for anger management therapy, 8 customers in the line were appalled by the supervisors behaviour. i shop there daily for my lunch as i work at standard bank when i told my colegues, they said they wonder why she is still there as she is very rude and cant do other transactions vthat require her. please do something as this my lead to us boycotting game