Bad Service and swearing of a cashier

Yesterday went to kagiso mall liqour store and the cashier by the name of PRETTY did not serve me with respect and She continued swearing at me in front of her manager and other staff members while other customers were busy repremanding her to respect customers.

I do not think that Pretty is meant for this company n ready to work with people,should this manner is not taken serious liqiour city in kagiso mall will lose customers as I was told by other customers that She (Pretty) is like that and the manager is scared of her to reprimand her. Even the staff member also confessed that the manager always shield her.