I've noticed that Cityjet stopped providing real time customer service through twitter at the end of 2016. It now seems only to be provided in case of severe disruption. Twitter customer service (for an airline) was something that they pioneered a few years ago, and it's sad to see it go. I wonder if it suggests that things aren't going too well for them - or if it's simply the case that they've got so little own label flying left that maybe it's just not worth the expense?