I think it might be the same deal as shopto, they can't believe anyone would sell a game on the 2nd of january, especially one so perfect for christmas.
My guess is they went one step further and instead of sticking to a release date of the 9th like shopto they pulled it from being sold until they can find out the truth.
I think they are worried about meeting the delivery of the 2nd, almost impossible for them in the uk unless they send out copies straight after boxing day which means they could break street date, problem is when are these copies supposed to arrive in stores?
they must arrive well before christmas in which case why isn't the game on sale in december. Game has this situation sussed and is going to be selling early to avoid the confusion and mess, whilst picking up all the cancellations from other stores.
It's an absolute mess but my local game store has copies and said it's selling them starting this friday