banned

Can i be banned from a gym as a member because "people" claimed the current GM i was saying mean things about her when i was an employee? i was told there was an email sent telling me i was not welcomed back as a member. which i never received. also when i did visit the location to visit a friend i was rudely told to leave. borderline treated like a criminal then i was told the police were going to be called. when i chose not to leave then i was refused an explaination