I need legal advice

On the 17 December was the worst day of my life i went to MRP in Galleria mall i made a purchase of about R 800 as i was walking out the store the store manager stopped me and asked me to walk with him i followed him in to the sfaff designated area anf he call a female shop assistant and told me that whem they checked the camera they saw me putting something underneath my dresser I had to strip naked in front of the the female store asistance she ddnt find anything they searched my bag they found nothing they never showed me the footage nor did they apologize i was so humiliated I was in tears when i left the shop what ****ed me off the most is they let me pay for whatever items i had then they decided to search me I am not even sure if i want any of the items I purchased as they are a constant reminder of the what happened I have never been so humiliated in my life