I have 310 points on Club Nintendo, and therefore I am a Gold member. The website says:
Within each Club Nintendo year (July 1-June 30), earn 300 Coins to reach Gold status or 600 Coins for Platinum status. We add up the Coins you've earned and we don't subtract the Coins you've spent, so you can use your Coins to redeem cool Rewards throughout the year!
Does this mean that I can spend points on things and not have my existing balance subtracted? Also, if I reach platinum where can I claim the special rewards they give out?