This solution does not work
The only "number" I found on the shipped material is an external label attached on the container box with the part number and the lot number.
Nothing which seem a "serial number" or an "activation code" and the only consideration about the licensing I found in the user guide assume that I've already a "licence.dat" file.
Addenda:
Actually I've found on the bottom side of the board two micro-label with
S/N, P/N and a third one with another number. I tried to activate the product with all of them but the answer is always the same "INVALID activating code"
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Moreover I do not know how to contact Altera for an help.
In "My support" web page there is no way to send an help request.