I just learned something new and it works-.

I guess they finally upgraded the Total Rewards App- "Play" to something useful. I had it before but it didn't do anything so deleted it.

If you download it and log in, you can go to contact your host. It will let you know if they are on duty and currently available, and has their contact info and even their photo. It will also list each property where they host you at, and get credit for your play.
I thought it was cool, I use my host but haven't ever met him in person, so at least I know what he looks like now.

Would be good for those who don't even know if they have a host too.