I was going to exchange my iPhone5 today due to chips on the aluminum, but they were out. Going to return it tomorrow & wait until they get some in stock. Anyway, I have a couple questions for more knowledgable folks. How do I get service again on my old iPhone after I return the other one (I'm with AT&T)? Also, I was eligible for a subsidized phone when I got the iPhone5, but will that still be the case when I get my new iPhone5 later (will the return affect that)?