Harrahs Hotel and Casino St Louis

My girlfriend of 3 years and I came down from IA and stayed 2 nites at $200/nite. First day was great, gambled, no problems. Day 2 we visit the Galleria Mall and buy a nice evening dress, as she likes to look her best for me. That nite we try to enter the casino and they flag her IA license. Their facial recognition software has problems and needs to be fixed, so watch out. She's 25 years old. Two security guards checked her ID and denied us entry, so then they get a state trooper involved. His technique was to interview us separately, like they do on COPS. He asked her if she knew my name, and commented on our age differences. She offered several other forms of ID but he refused. Credit cards, school ID, etc didn't matter. After 15 minutes of harassment they finally let us in. His only goal was not to verify her age, but to check if she was a prostitute and I was a John. It was insulting, degrading, upset my girlfriend, and she eventually cried later that nite. I had to deal with it - ruined our romantic evening. No apology or anything was offered, they were just "doing their job". I asked the security guards and the hotel clerk how I could file a formal complaint, who could I contact, but there was no avenue for complaints to be filed. No one was interested, nobody cared. Harrah's just doesn't get it. Never again. Also, the casino is smoky.