In my "local" casino's, I "always" go to the players club and ask about my "birthday" promotion, even though I already KNOW there is not one.
With a pleasant attitude, I almost always get something for asking. (I indicate I received an email from someone, must be the other casino. Will you give me the buffet anyway? How about FSP?)
Works for me. Last year, between 5 local casino's (within 1 week of my BD), I got: 1 T-shirt & $10 FSP (T-shirt was leftover from different promo), $10 FSP, 1 buffet, and one "nothing". Would have not gotten anything without "social engineering" for some BD swag.
I always ask for something. Any time I come into contact with a "boss", I ask. Because something I learned many years ago (from "Comp City" by Max Rubin), if you do not ask, you do not get.