Help with my charge call..

I'd like to get some advice on talking with a senior official.
Working a MS girls game the other day, I'm L and partner is T away. A1 is guarded well by B1 just outside the lane. A1 starts to make a move to the basket, lowers her shoulder and drives into B1. I call the charge on A1 give a PC signal and go to report the foul. No whistle from him. My Partner went to administer the throw-in and started to give it to Team A. I had to stop him and say "offensive".
He obviously disagreed with my call from his body language and look on his face and everyone in the gym could see it. Which didn't make me happy.
I talked to him at the half and explained my call but didn't say anything about his reaction.
My question is, how would you bring it up or would you not bother?