Dollar Tree review: rude customer service

My mother had been at the store on 10/09/2019 with a friend and my two kids. My son started crying and manager at that time in the evening has told my mother she needed to leave the store because my sons crying was bothering her. My mother's friend who does not speak any English was at the cash register to pay for her items and manager threw money back at her and insisted for her to leave the store as well. I had called the store to ask for manager name and she knew who's my mother was and hung up on me. I called the store a couple of times and finally said her name was Kathy. I have never heard such bad customer service people like that should not be in that position specially embarrass a grandmother with a two year old grandson and act in such a way in front of other customers.