That doesn't require any communication skills. You just enter the competition and win by random chance. I won a chrome silver Bluestreak reissue that way when I preordered eHobby Megaplex (they automatically put all preorders into a draw). You do need a Japanese residential address though. But yeah, bugging them won't win you any random draw prizes, only luck!(or lots of money if you want to buy one off the aftermarket)