I also had the "too good to be true" feeling when I saw the ad, but decided to take the chance since it was through eBay and not some random Cell for Cash company. I called them this morning and someone answered quickly, I'm not sure if the others having problems getting through have a different number? The one I've been calling is 1-800-351-6864. I explained the problem and asked what model they claimed to have received from me, and to my annoyance she tried to get me to verbally accept their adjusted offer. I said no, that my iPhone was guaranteed to get $200. She said they showed I indicated I was sending a 3GS (which I didn't), and had mailed in a 3G. Instead of arguing that fact, I told her that according to eBay's Instant Sale page the 3G is also guaranteed $200 (unless in poor condition; mine was nearly perfect). She said something like "yes there's been some confusion on that issue" and quickly offered me the original full amount of $200 - like the op I felt that was way too easy, but I checked my PayPal about an hour later and the money is already there. So it seems to me you have a good chance of them attempting to rip you off, but if you call them out on it and press the issue just a bit they will give you the right amount. Good luck to anyone else dealing with this!