I feel discriminate about my colour at shoprite leondale road

At 15h30 I was at shoprite in leondale road. Bought a few items with my daughter.the lady at the till give me excellent services I must admit very polite. Proceed to the door the guy ask me for a slip I didn't know where it was for that moment . Now with this covid is not been practise there he grab my daughter on her arm pulling her back demand the slip .They refuse me to leave unless I proof that I bought the stuff.went back spoke to a supervisor not friendly at all just tell me i called the branch manager. He is always at the back when he come I ask him am I a ******** that I would come in your shop to ***** .he told me i.must stand with him to observed how the security ask every one for a slip.i told him dont give me that about 13h30 yesterday teusday I was in this very same shop and I walk out without been ask for a slip why do you treat me like a ********. My daughter find the slip we went to them .this is the security that all ok staff are scared and worship. You can't touch their security holy ones. I showed him my slip he doesn't even look at me . He look at the lady that stand on top of me no social distance in that shop .I ask him do your job he scratch on my slip and told me to go. I went back to the manager I ask him what kind of practise is this . I really feel this is a racial problem I think I am almost the only coloured person shopping there and they will show me how I will get treated . I still feel like I stole from them . I ask him the manager why now that your security have the slip he doesn't check what is in my bags. Unpack my stuff and see what I stole. They ask for a slip but they don't check what is in your bag. I told him I go to pick n pay checkers n spar they don't ask me for a slip . Shoprite can advertise on the tv how they will be there for you but what is this treatment . I know even if I complaint to there customer care centre they wil say it was resolve without me being involve pick n pay does that spar does that there is no customer services in south africa any more . I want any of these outlets to proof me wrong I have proof.