Giant Food Stores complaint: Barred no reason 7th and O NW Giant Food

About a month now or three or four times I have entered Giant Food on 7th and O street nw DC and have been barred by a fat security guard ..a big fat black woman greasy hair in a weave who tells me I cannot enter for some reason ? Because of the covid19 ? I did have a mask on she told me to not enter I am barred..it has nothing to do with inside the store or stealing or any other reason or for problems with in the store. This security woman continues to harass me we go to take it to human relations and they also barred me for her word I am a risk.
so there is no reason except that she does not like me and discrimination..i don’t like her for bothering me so I’m going to know how can I get her fired or be able enter the store again to make purchases. I am a disabled person in this community for 20 years I feel like the Discrimination is unnecessary how do I file a complaint wife were removed and be able to enter the store again?