hello, I just bought dell streak from ebay, the seller said it's brand new, sealed, unlocked... but when I receive this phone, box was resealed and alot stuff inside wasn't packed like should be, so now I wanna make shore what that liar don't lie about warranty. seams like this phone directly from dell.com but I don't receive any receipt or order print. Somebody can explain how I should register or I don't need warranty? And to use warranty or I need receipt or not?