Interesting that pretty much everything here ended up being about restaurants when these days you barely spend a quid without being asked to fill in a questionnaire afterwards about 'how we did?'. I've been surprised that in a few cases where I've moaned on those, the company has actually followed up. They must get a warped view of their business though as I'm sure far more people fill them in if they're unhappy than when everything is just fine. Restaurants-wise, struggle to complain but once did tell a place to remove the service charge after asking several times for the bill and having had to wait ages for everything.