> Second he is asking to you more money because 
> rate change during this time. Don't you find 
> this completely crazy?

No, I don't find this crazy. If you buy from a 
seller in another country, either you pay him in 
his currency or you have to make sure that he will 
receive the correct amount based on the current 
exchange rate.
Dollar exchange rate droped a lot. If a seller 
quoted you a price a few month ago, it's normal 
that it's isn't the same now : it's not the fault 
of the seller if he didn't received the money in 
time and now the dollar is worth much less.

Cheers,
Yann Stettler