Hoi Poloi or Ragga****in spot?

Had booking for a 60th birthday celebration on Saturday 7 March. We arrived at Hoi Poloi, we were the only people there at 06:30pm. We were shown to our table, given menus and the waiter left. We were seated outside, there were no lights on and we had to use our phone flashlight to read the menu. the waiter did not return to ask about drinks order, we then went inside; only then the lights were switched on outside when we complained. The whole feeling was that we were an imposition. The previous visit (3 previous times) it was a complete different story, there was a good "vibe". What has happened?