I got it this morning. Last week I upgraded an account to tBC and WotLK, then this weekend I was going to do the same for a second account. After successfully doing the upgrade for tBC, I got the 202 error for the attempt at upgrading to WotLK. Mildly annoying, but I don't need this change to go through exactly this minute, so I can wait on it. I may try resetting my modem to see if that works as well.