It is not clear what the exact basis was for getting this offer.
I need to clarify my situation. My 26 yr old son is getting the offers through my email account. He, my wife, and I are all lowly Pearls. We usually will spend a few hours in a casino on two nights of an extended cruise. My wife and I are not getting the offers! Now, I did call to verify the legitimacy of the offer. I think in this thread, we tried (unsuccessfully) to figure out the basis for the offer.