They required me to change the minimum age for the app before accepting it. I can see the point with regular bingo if awards like coins or jewels are given... but travel bingo, which is basically checking off boxes of what you see on the side of the road?
Anyways, with my next update I'll attempt to submit it at 4+ again and see what happens.
If you want to check out the app it is here: https://itunes.apple.com/us/app/travel-bingo-for-kids!/id733677465?mt=8