That makes at least two of us.

Looking at the various pieces of information as they were posted, refining what appeared to be a serious offer, I came to the conclusion that very few people would qualify for this limited promotion. That conclusion was confirmed by the full t+cs.

I wasn't invited. I registered using the link in the t+cs and my pre-registration was successful, so it's all a little curious.

[Edited to add:] As I clicked to post, the e-mail arrived, so I was invited after all.