Pretty sure it ended up being the casino department that helped me. I did send them my original invoice and sent them a diagram on how I figured out the discount and how much I thought it should end up to be. The discount will only be taken off the 1st and 2nd passenger base fare. Like I mentioned, I emailed them constantly and finally someone responded and was able to figure it out. Not to be rude, but half the people I had talked with, were not very intelligent. The one person told me my third passenger rate increased, because when I updated the info, the seniors get charged more, than others. Good grief!!!! Again, good luck!!