Also, don't worry about what the personal injury attorney said. True, you didn't get medical attention months ago, but Harrah's doesn't know that.
You need to bluff them and make them think you have a viable case.
BTW, you are also welcome to appear on my PokerFraudAlert Radio show and publicize this.
You can also threaten you are going to appear all over gambling podcasts and go to the local media about this. But only break out these threats if they are uncooperative.
Keep repeating things like, "I am an honest person. I don't want any money out of this. I will pay my own bills. I just don't want you to treat me honestly, too."
If you make yourself look like the opposite of the opportunistic jerk who squeezes them out of money with fake or exaggerated injuries, you will get some sympathy.
Don't admit you have no copy of the security report. Say things like, "Check the security report and you'll see...", and then once they acknowledge having read the report, ask them for a copy of the report. Do not admit you don't have it, but rather claim that it's at your other residence and you want to reference it again.