We are going to Vegas in Sept. and have a $300 Free Play Offer. Our host has booked it for us. My question is how does it work? Do they put it on your card and give you a code to use or will we get a voucher like the ones we get in our mailers? I'm assuming that we will have to go to the Total Rewards desk to get it taken care of. Thanks for any info. This is the first time we have ever tried one of their offers in Vegas.