In any case, they've been doing this for years. I've ordered rare/unusual titles that they've described as having in stock before, only to get nothing. In the case of one title, I left it 6 months before complaining ('cos I couldn't get it anywhere else). All correspondence went unanswered, so I just ended up cancelling. The titles still remained on their website. I'd like to have thought they'd changed, but then you read reports like these.
This post is unsuitable for those with a high rumour-sensitivity.