[[ I made registrations with no problem.
So, it was real. ]]
The "trick" in the ebay/applecare scam is to sell you a "number code", which you then enter with Apple -- and it LOOKS OK. It "looks real", but it's not.
The problem comes later on, because the code is a fake that was created with a code generator.
At some point in the future when you need to -use- the Applecare coverage, you may then take the computer to an Apple store and suddenly you discover that Apple now "kicks back" the code you had entered months ago as invalid.
I posted a thread to read about how this works (with complete details in some posts) above. Here it is again:
Ignore what it says if you wish.
But you ought to take the time to read it.