Singdaw, my advice is to not order the award. If you didn't fulfill your 20 years then you would not have earned your 20 year award.
That is the sort of thing I learned from watching LEAVE IT TO BEAVER.
If he was only two months short of 20 years.... 2 months... seems to me the company probably rounded up his time spent and called it 20 years. This isn't like insurance companies where you can pay your premiums every month for 20 years, miss one payment and lose all your coverage!
But there's an easy way to handle this, if you think you'll be too nervous to enjoy your camera once you get it, and thus spoil your enjoyment of it.
Simply call up these people, explain the situation, and see what they say! If they say no, well then you've lost but you won't find yourself thinking, "Oh, I wish I'd done it...what if I do it..." anymore. But chances are they'll say, oh, no, no problem.