Fastfix confirmed basically what you said, Additionally makita direct confirmed everything was as should and date/serials all check out.
It's plausible- they could be metric in Japan rather than the imperial UK ones. I know they do both 1/2" and 12mm routers, depending on the market (though that's probably just a different collet). But the metric counterpart of 1/4" tends to be 6mm (rather than the direct equivalent of 6.35mm), which would mean a 1/4" bit wouldn't fit at all, rather than having play. So I don't know. Definitely worth looking into though before you take the plunge.
It's probably split from a pack. I wouldn't worry about it, it's fairly common practice. I've had drills and batteries arrive the same way from other sellers, they're just taking a kit and selling all the components separately.
Yes that’s my point I have emailed and asked. Over the past two months I bought the jigsaw,orbit sander and hoover all of which Came in its own box with Makita paper work. So I am A little sceptical about what I received!
Ah right! Yeah mine come like that too. I’ve never bought a bare unit before so wasn’t sure how they came. Didn’t seem quite how it should from manufacture though !!