PlanetRJ,
Recently, PokerStars implemented a new feature in some tournaments whereby you receive (some) money when you make the cash, and then additional money where you are eliminated from the tournament. Is it possible that this is what caused you to believe you only received half the money
More information on this feature is available online here:
https://www.pokerstars.com/help/arti...nation/140882/
This seems like something which offers some benefit to players (you get money sooner) and some benefit to PokerStars (increased chance of you wagering money while you continue to play down to the winner of the tournament).
If you continue to think there has been a mistake, you can check this by requesting a player history audit as described here:
https://www.pokerstars.com/help/arti...it-instr/9421/
I hope this has been helpful.