Apparently a bunch of people found a way to scam it to get 100’s of packs and they pulled it since this morning. :(
From the OS comments
“People have apparently been signing up with tons of different accounts in order to get hundreds of free packs, so SDS have taken it down apparently. No idea why they did it this way instead of just giving everyone the 10 packs and 1k stubs when they sign into the game, all that this did was leave it open to abuse and screw over the non-NA players who were ineligible for the codes.
So expect the market to be a bit broken on release with the cheats having hundreds of free packs to open.”