8th Rulebook Dark Imperium enhanced edition pre order

I pre ordered the enhanced edition rule book on iBooks a few days ago, but now when I go into it it still says pre order even tho the regular edition is available now in my country on iBooks. I have tried this on 3 devices and whenever I click my pre order it says not available in my country? I even went to the gw site (au) and found the item 69.99 and clicked open in iBooks but again it says not available in my country.. the standard edition which is (62.99) seems to be available but not the enhanced.. I even tried to search for it on iBooks but only the standard ed is there now? Where did the enhanced edition go? It was there a few days ago when I pre ordered it now it's gone from the au iBooks store?! Bit annoyed that I can't get my rule book even though standard released.. possible error perhaps? Any help would be great thanks guys Sorry for wall of text.