The answer to that is that Mine craft while saying it in my other blog that Mine craft that the 1.3 update went wrong, because of this you're username will not be recognized. That is technically saying that it cannot recognize you're user interface of buying the game, So, It's like it say's you didn't buy the game. But you did, Like in the last blog post I said that 1.3 went wrong, this is the after shock from that, Very little servers work now, it is being fixed also, Don't be worried. :) -Stickkid456