Extremely poor customer service

I went to ackermans store in dobsonville mall to purchase a phone for my son and no one showed interest to help us.Other cashier kept on calling someone to come help us with no luck.i waited for about 15minutes until I decide to go.What a poor customer service.On my way out I saw a store manager and explained what I have just experienced in his store and he asked me to go back he will get someone to assist me.i said I am ohk as I was very crossed with the service.Store manager needs to put his foot down and do regular floor walk so he can pick issues like this on the floor.