I used to play the free minecraft classic single player and then bought the full version (premium) on mac. it was successfully charged and says that i own it. When i downloaded the launcher from the minecraft site i tried to log in using my normal minecraft username and password and then said that i'm not connected to minecraft.net and in brackets 'haven't downloaded'. i don't know why, but i do know that other people have came across this problem so hopefully someone could help! please leave a suggestion