Mistreated by the store manager

I went to a Jet Cresta on 29 November 2019 to buy things for my kids,but when I get there I was mistreated by a store manager Gaven,I was asking one the staff member about girls jacket,but he came straight to us shouting saying that I'm disturbing his staff member,and also if I don't leave the store he is going to call the security to throw me out of the store,I had to leave without buying the things that I was looking for,hurtfully nevermind I used to work there,he wasn't supposed to talk to me like that,what will happen next time if I'm with my kids,I didn't like the way he talked to me,it was very unprofessional,I wasn't happy at all I didn't even buy the things that I was looking for because of his rudeness.