Dollar Tree complaint: customer service

i go in that store at least 4 times a week ,there is a lady name linda i hope that was her name short mexican lady ,well today was the last straw ,susan had 7 people waiting in line ,one line open she was working as hard as she could ,she called for more help ,linda walked up behind her and said stop calling me up front im trying to do the delivery in the back ,she said to susan i dont have time to be stopping and coming up here ,then she went to the register and said to susan sorry cant help u my register is broke ,i looked at her and said wow great customer service ,just remember we do pay your paycheck ,she turned around and walked away ,this is not the first time with linda one day she got pissed because she had to help ,she had a bunch of boxes to put away she turned around and kicked all the boxes and said something under her breathe ,ive dealt with her about 6 times now she is the rudest lady ive ever dealt with and if she stays there im done with your store ,susan ,mary ,and i think her name is becky are all hardworking sweet ladys ,how she still has a job ill never know ,i was going to apply there for a job but no thx ill pass,so i hope u look into this i know others in line where shocked as well as me