There isn't any standard playing rule that prohibits the batter-runner from advancing past first base on this play (though it is possible your league has written their own rule to cover this).
This is where it helps a team if their coach understands the rule and procedure for filing an official protest. If it was a misapplied rule, filing an official protest should have resulted in the call being reversed. You would replay the game from the protested point, with the runner correctly allowed to remain at second base.
It has been my experience that few coaches understand how an official protest works or how to file one (and, yes, some leagues may not allow them). Understanding how a protest works can be the difference between losing a game on a bad rule interpretation or salvaging a win for your team!
I do understand, but The game was just a HS Fall ball game which really doesn't mean much, there games just to keep the girls playing. I respectfully questioned his call, but he said i was mistaken. It wasn't like in regualr season game or a TB Tournament, i really wouldn't have had anyone to protest to.
Hmmm...what was I saying about coaches not understanding how an official protest works?
Sure you would have someone to protest to! Protests are to be handled by the plate umpire in the game you're playing. The protest is noted in the team's scorebooks, the game continues, the protest is reviewed by a third party (league officials) at a later date and either rejected or upheld. If rejected, the protest becomes moot and the game's final score stands. If upheld, then the call is corrected and the game is replayed from the point of the protest.
I know that a lot of times coaches will say they didn't file a protest because "we were way ahead in the score" or "it was only a league game". Personally, I'd rather have them file the protest in any situation where the feel an umpire has misapplied a playing rule. If the umpire was wrong, and a protest is upheld, then the umpire learns something and that helps prevent him from making the same bad ruling in the future. If the protest is rejected, the coach learns something and that can stop him from arguing an incorrect rule in the future.
Being that they are unofficial practice games, agreed probably not anyone to really protest the game to, but, you are getting officials from somewhere. You should contact the assignor with your concerns about the call so that they can go over it with the official. If they arent corrected they will continue to make this incorrect call.