I want to complain on the store in Delcity

I want to complain on the store in Delcity. It’s the 7-Eleven on 29th and Sunny Lane in Delcity. I want to complain on the manager. I’ve had problems with her. Her name is Gina. I don’t know her last name but she’s taking pictures of my car she’s flipping me off. She’s harassing me and I have made other complaints on her. I wanna make an incident report also for pain and suffering because she threatened to beat me up and it upset me very badly and a cop did show up all of this documented so I wanna know how to make a complaint on the store manager. Her name is Gina.