I was PU today for a 13-14 yo Pony game (OBR). One out with R3 when pitcher throws a WP which careens off backstop towards the on-deck batter who reaches down with his bat and taps the ball back to the catcher who is chasing after it. I called TIME! THAT'S INTERFERENCE and called the batter out. Was that the correct call? Doesn't there always have to be an out on interference with the offense. Should R3 have been called out instead with less than 2 out?

If no base runners or R3 and 2 outs, should the call be different?