That will be a sorry reason.

I'm beginning to think my Amazon Canada estimate of May 2-May 6 delivery showed considerable foresight on their part.

1) It's been clearly stated that the boxed editions available on the Ubishop were UK exclusives.

2) In the early days when it wasn't yet available from other retailers, people tried proxy servers and what not in order to order a collector's edition or an English speaking regular one from Ubi (localized German and French editions were available on amazon pretty early on), despite the above point.

3) The game is now available on other retailers too.

4) Ubishop still ships within the UK and cancels orders with foreign shipping addresses.

I'm not saying it's an optimal situation but honestly, what did you expect would happen? That's exactly the reason i ordered via a relative who's studying in the UK and not directly :-P