Your best chance is to call Four Seasons, Pan Pacific, and other such hotels since slow season can make a difference.
If you are from Pattaya, there is a great breakfast buffet (and I think they had champane when I was there- I stuck with Bloody Marrys) at the Japanese restaurant on the second floor of the Royal Garden Plaza (sorry, I forgot the name but it is managed by the Mariott Hotel). Great salads, seafood (including lobster), imported beef along with the regular breakfast menu...oh, and the desserts! $$$$ but worth it on ones BD.