Tips not reflected on payment screen

The app works fine, but on the final checkout when it gives you the total there is no mention of tip anywhere. Then my card got nailed for a $5 charge which apparently was for the PrimeNow tip. Im fine to tip, as long as they dont try and hide it by not putting it anywhere on the order page or checkout. Also, the app would not display any restaurant delivery section for me. I would rather it have the section with a message no restaurants in my area.

Mcraddict about Amazon Prime Now, v3.1