Abuse and harrasment from Checkers security

On Sunday the 28th May 2923 I visited the Checkers Hyper in Kolonade Montana. Upon my arrival, I had a trolley from Game store with my purchases I su mitted myself to the security for clearance of my purchases and whatever items that Checkers has were tagged accordingly. I made my purchases and as I'm about to exit I get stopped by a female security who then interrogates me on where I bought the paper towels in my trolley. I'm immediately taken aback by thus invasive question as she has mot first asked to see my slip nor has she checked my trolley to check whether the items are tagged or not. I tell her she has no right to interrogate me on my purchases and hand the till slip and tell her to check whether these items are tagged or not. She proceeds to tell me she has every right to ask for any slip and that is the policy as checkers. I'm highly surprised by this as this lady does not work for any other retailer but checkers and why am I now being treated like a ******** when I've followed procedures at Checkers. The most humiliating and upsetting part of all this, it happened on the entrance and I had my daughter present. I requested the manager who apologized and assured me that the matter would be dealt with in Monday, which has not happened. I felt humiliated and treated like s ******** when I had been transparent. I feel that this security harassed me and surely abused her authority by interrogating me without furst verifying her suspicions. This has left me feeling bitter and the complacency by Checkes on a matter that caused me do much distress has been telling.