Does anyone know if L'Auberge du Lac out of Lake Charles, LA, has some kind of "promo chip"?

I didn't see anything listed in the Chip Guide but I got a birthday mailing saying I would receive a $25 Promo Chip if I went to the casino in the month of September. I assume its some kind of match play or Win Card thing. I doubt I'll do the 7 hour round trip next month (especially since I don't collect riverboat chips) but in the off chance I had a free weekend I really just wanted to know what it was they were giving.