Zuko just... smacks himself in the forehead with his free hand. He can read between the lines. It doesn't help much.

"Uncle, c'mon, let's go... We'll go buy you a new phone... Damn it..."

Zuko checks his bank app with a withering look; he has enough to cover it. But he's gonna have to borrow money from Azula later if he finds any other surprise big expenses. He hates borrowing money from Azula... But this is worth it. He won't tell her what happened exactly, though. He'll spare Iroh's honor.