Why do I have to buy Season 3 part 1 twice?

I woke up this morning expecting to find the back 13 episodes of season 3 in my iTunes library after having spent $25 for part 1 back in April. To my chagrin I found no new episodes and the only way to complete season 3 digitally is to spend another $25 to buy all 26 episodes. It’s not gonna happen. I don’t think I should be penalized for being an early supporter of this great show. Why should I have to pay twice as much as everyone else? Why should I have to muddy up my iTunes library with duplicate copies of the same episodes? I expected better from a show with Justice in its title.