Apple tv

I recently bought iPad Air and it came with a free apple tv and arcade.

Free for a limited time, as described in the promotions.

Apple TV+ offer - Terms and conditions - Apple

Apple Arcade offer - Terms and conditions - Apple

Now i cant find it on my phone.

You’re not supposed to redeem on your phone. You are supposed to redeem on your new eligible device: the iPad.

Only Apple Arcade free 3 months?

Both Apple TV+ and Apple Arcade are offered, if you didn’t get an extended trial for those before. If you enjoyed it before, then you can’t get another extended free trial.

Read here how to redeem: Apple TV+ offer - Apple

Read here how to redeem: Apple Arcade offer - Apple

Read here if you have trouble redeeming: If you can't redeem your promotion for an Apple subscription - Apple Support