Family Dollar complaint: Ignorant employee

I had to return of a digital antenna. I started off with good morning brother I need to give this back as a return. The employee stated I am not your brother I am not your friend don’t start that s with me. There was nothing wrong with the item I just wanted a better digital antenna which I had purchased at that store the day before. Instead of placing it on the side he threw it on the ground. He and the other cashier we’re making fun of a larger size woman walking in the aisle. He told the other cashier to watch that f fat b I think she’s a thief. He made fun of another customer who had just walked out the door. I asked if he could watch his language he told me to shut the fk up. I want a district or regional manager to call me at 330-880-8802 my name is Kevin Smith. My email address is KL [email protected]. I have never had such a terrible experience.