Hopefully somebody can confirm this information in the future, and it wasn't just a one time deal.
Renaissance Phuket Island & JW Marriott Khao Lak
Information is the same for both, but...
I was given free breakfast for my 9 year old child at both locations because of the Platinum level. Policy? Not sure, but I figured that I should mention it, even if it's only an $8 value or so.