Family Dollar complaint: Rude representative

Came to the lime kiln location this morning roughly 10:10 am prior to my sons Dr. Appt to return an item that I had purchased last night from the Military location. The older lady that was working at the time was very rude, I had said good morning to her and she just totally ignored me, and told me she’ll help me at the other register. Waited at the register roughly a minute for her to come over. She came over and looked at my receipt then told me I had to bring it to the other family dollar on the west side where I had initially bought it for the return because they didn’t have it there? She didn’t even look or nothing, not to mention I have worked in customer service for 16 years never had I heard that you couldn’t do a return at a store with the same name but different location. Piss poor customer service, never had I treated a paying customer in that way in my 16 years of work.