ABSA bank Durban Smith street bad service

I'm very angry at the service my brother received from Absa bank Durban smith street. The receptionist Khethiwe that the name she gave my brother I doubt its even correct refused to help my brother make a deposit at the ATM. My brother had cash with him He,s illiterate he wanted to make a deposit to my mums home loan but couldn't he had to come back with the cash because she didn't want to assist him. Can this girl just say if she does not want to work they are many people out there looking for jobs. How can a person refuse to help a client I,m very angry at this incident.