We’re experiencing heavy traffic at the moment, so accessing your account may take a little longer than usual and you may see display issues with your account when logged in. Please note that you’ll have until 6/30/15 to redeem your rewards. Thank you for your patience.
Yesterday, Club Nintendo announced a massive sale in conjunction with the discontinuation of the loyalty program, offering physical goods as well as Wii U, Wii, and 3DS downloadable titles at discounted redemption rates. I have since experienced issues a) accessing the page or b) signing in.
In May 2014, Club Nintendo experienced similar server strain due to heavy traffic generated by the Mario Kart 8 free game offer.