Family Dollar complaint: Racial profiling and Belittlememt

As my fiance and I were walking around the store grabbing the items we needed, we heard the manager yell from behind the counter to us saying Aren’t you the guy who was here the other day and gave my employee a hard time? My fiance, confused, went on to explain that we weren’t from there and lived an hour away and hadn’t even been to that family dollar in over a month. She obviously didn’t believe us and went on to say Are you sure because you look just like him! at least 3 times as well as threaten us with trespassing because the actual person was banned. On top of that she was the rudest person I’ve ever dealt with and made no attempt to hide her displeasure of having to serve us as she slammed and threw each item we were purchasing across the counter after ringing it up. Definitely not a person who should be dealing with the public!