name of product uct / service

Management of a deptment store refuse to return a cake charged on my cred[t card and call police and security to escort me out of store. After I told the officers I did not need to be excourted out the manage took it upon herself to personally walked me out the door. I was very embrassed and it has affect my self esteem. I have called back to talk to store director and she was also rude. At this point I want to write corporate office and get her and the director fired. I feel I was discrimated against and huminated in front of all the people in store. I did not do anything wrong I would like to get an attorney,