Bad customer service

My brother had a bad expirience while doing shopping at sports scene village square. He asked for assistance from a sales lady who was stationed at the change rooms . When he asked if the lady worked there she got upset and gave him attitude telling him that doesn't he know a white T shirt can't be fitted he needs to get a different colour which he asked where they kept the other colour of the T shirt she still didn't help him what she did was proceeded in dancing and looking herself on the mirror. The reason why my brother went there was to go and buy bulk T shirts for his soccer team . Because my mom saw they were having an argument she went to intervene she then still gave bad attitude and said my brother was giving her attitude. Bad customer service was given and she kept on arguing with a customer without getting a solution . A refresher customer service training needs to be given to all the staff members from sales floor to front till operating staff . Friendly customer service is not given at the store