Can a store manager ask customer to not come back when the customer has filed a harassment complaint with the?

I filed a complaint after some of the 7-11 store employees were bad mouthing me to other customers. I asked them what they were saying but never got a answer. The manager and myself could have a issue thats a conflict and she is aiding the difimation of character to me. I was told to not come back after filing complaints with coporate office in texas. The manager is a Lair herself and she is actually the one who has started words of ill-repute agaings me So now i cannot go to the store account of this Have never spoken with owner still I have this now.