Ouch. I really hope do too. Most of the big chains have had their fair share of accidents, where fakes get past the rma process unnoticed, but that's never really an intentional thing. 3rd party sellers are different. Consider the price. It was really good. There's no way a smaller company or individual can stay in business by selling at a loss, so wherever they got the cpu from was at a steal of a price. Even a small shop owner will send a defunct cpu back to Intel for credit, he cannot fix it, and is guaranteed not to be out of pocket any cash by doing so. So they don't sell returned merchandise for anything less than they paid for it.
Gloomyness not withstanding, Intel is supposedly honoring the warranty rma, be happy about that, whatever the circumstances of purchase, even Intel cannot 'repair' a bad cpu, only replace it, so the cpu you get from them is Genuine, honest Intel, no BS, certified and authentic. If it was faked, changed, tamperd with then Amazon has the records of sale and Intel has lawyers who can backtrack. If needs be.