What "attitude"? I'm just a little annoyed that I can't get my faulty phone replaced.
The attitude he's talking about is entitlement. And look, I'm not saying you're acting all high and mighty or anything. Don't take it the wrong way. But you've definitely got to have some perspective here. If you really feel like the issue is so bad that you need to have a replacement immediately rather than 3-4 weeks from now, then go ahead and call, get another CSR on the phone, and try again.
Just don't give them a hard time. I completely agree that your particular issue warrants a replacement much more than scuffgate and whatnot, but just try to be understanding that it's not really the best time right now to be hunting for replacement units.
tl;dr: Demand is a strong word, maybe repeatedly request?