penalty after a blocked try

[LJnkansas]

this scenario happended in our college game on saturday....help me out on the proper call.
A's try for the point after is blocked by B. The ball is behind the line of scrimmage and in the aftermath and melee for recovery, we had a B player bat the ball forward towards his goaline. What is the proper call and please reference in rule as so that I can read the proper ruling. My thought is that the extra point is not replayed and that the penalty is declined by rule...............but unfortunately i have been wrong before