Spar securities treats people badly because of how they are dressed

So today i went to @my_spar in Highpoint to buy bread after a tiring gig, after buying the treatment was so bad the security decides to search me of all people. Whats surprising is no one is search but ne after buying. When i decided i want to take the staff back the assistant store manager refused and the security threaten to beat me up. I have used the shop for nearly 14 years i have never been searched and today no one was being searched only me.