Asurion Replacement - What do I actually have to return?

[Vip3rV333]

The vibrate on the Diamond is buzzing weird like something is a bit loose, so I just ordered a replacement. They said that I have to send it back to them when I have to receive my new phone or they will charge me $200. So two questions.

1. What do I actually have to send back? Can I keep everything like the battery cover and the styluses (styli?) and all the accessories? And just return the bare phone? Any body that works for Sprint that knows exactly?

2. Should I keep the phone and try to sell it if its possible to get more than $200 out of it? (checked the forum and it seems like there actually going for less huh?)