I once did LGW-OAK on a 777-200 that is best described as "knackered." I don't recall any announcement, but the sinks didn't work and some sanitising wipes had been placed there instead. Don't remember if tea/coffee was available though I believe I was more interested in champagne anyway.

I had assumed it was a fault given the state of the plane in general but it could perhaps have been lack of water. Either way, no one was particularly bothered by it as far as I was aware.