Violation of my rights , Profiling

Security kicked me out when I ask on what grounds he said I'm not a customer Shocking because I had just left the pick and pay I'm eat my biscuits BIG SECURITY GUY DRESSED IN BLACK uniform wouldn't disclose his name told me to leave mind you the he makes an example with a person sitting in his car just like me only difference is the guy was eating a pie so because I'm eating biscuits I get kicked out