On Friday, August 31, I showed the Gambling Journal ad to the cage, they told me to check with the pit boss, he said the ad wasn't good until September, but would give me a couple match plays after I played for a while.
Today, Saturday, September 1, just after openiing, I showed the Gambling Journal ad to the cage, they called the pit boss over, and the pit boss went to the back to talk to the casino manager. Eventually, they reached this conclusion: take the whole ad in exchange for two match plays.
Never mind the fact that the ad says "mention this ad". I suppose I'll have to collect a few for the times they decide to collect the ad. Silly, but easier than drawing unwanted attention.