Everyone BEWARE!
I also participated on the iPhone trade in promotion and mailed my IMMACULATE iPhone 4 to verizon and now they are trying to tell me that my phone arrived with a "LCD is bruised/missing pixels" which was NOT the case when I shipped it out.
The phone was babied by me and used since day 1 in a lifeproof case, and based on the research I have done, it seems like I am NOT the only one that is being taken advantage by Verizon Wireless.
I will dispute this to the end, because I feel like I fulfilled my part of the trade in agreement when I shipped my old device back and followed the instructions to the T! It is NOT my fault is USPS or even Verizon's trade in facility ended up damaging my device!