Family Dollar complaint: Unacceptable behavior by employee

I went to the Family Dollar located on McKinney st. In Denton Tx. On June 29, 2024 late afternoon and was cussed out by employee Montana. I had a return and the employee ringing me up was not fully trained to do a return so the other employee (Montana) had to show him how to do it. When Montana came over the first thing he told the other employee is you have to watch out for people because they come in here trying to scam. That should not have even been said in front of customers especially when I had my receipt. After the transaction, I had a cart of clothes and shoes where censors had to be taken off which held the line up. I assumed Montana was a supervisor or manager but did not even attempt to help the employee out. The employee ringing me up was getting overwhelmed and just started scanning the same pair of shoes over and over again instead of ringing each one separate like he should have as they were not all the same. The last 4-5 pairs of shoes were ringing up more than what I thought and I asked if he could just take those off and then Montana got an attitude and cancelled my whole transaction and told us “yeah you just f’d it up for everybody now” telling the people in line behind me. My husband told him to just handle up in business and he cussed at us again and told us to get the f out of his store. There was also 2-3 other employees behind the counter but no one asked to take the next person in line because he said he only had 1 cashier so not sure what they were doing. I spent a lot of time in the store picking out my items and was disrespected for no reason other than they just didn’t want to do their job. This is totally unacceptable behavior from an employee to a customer and I would like this situation addressed as soon as possible and I would appreciate a response back as to what measures will be taken to discipline this employee. Thank you