they are very nice in Udon 😊. For example last year for my extension they were not satisfied with some of the photos - they said just send new ones to us from the Line app 😊
I don't think so. If the app is not in use on the other phone how would the app on the new phone "know" the app is on another phone? It can't. I have installed Revolut on 2 phones and can use it on both - it should be the same with any other bank apps.