Not sure if them comping a night and a dinner is going to cut it. This obviously isn't about the money, it's about your vacation and ultimately the trust in Six Senses. Since you booked their top accommodation, they should be on top of their game. This is not a way to treat a guest. Aside from their financial gesture, do they care? Has the GM reached out to you? Not sure what to make of this, surely this construction didn't turn up from one night to another, so they should have had some time to prepare properly and consider options. This is the last thing a guest wants, especially at this price point.