I have bought Minecraft for the Xbox one for the $4.99 on my moms account since she had it on her Xbox 360 on my console. When she went into hers to play on it, it was saying that she didn't have the game and wants her to buy it for the full $19.99. She has been on her account on my xbox one playing it for months. I am not sure what to do about this. I don't feel we should have to re buy it.