Nissan have probably sourced other factories in Asia to produce these parts [EDIT; As mentioned by Lachie], so it may still be 'genuine' Nissan, but not the genuine you want. So I don't reckon there's been any misinformation on Maddat's behalf.

Just send it back on the grounds that it isn;t up to the standards that you would expect from a genuine Nissan part and put the money toward the re-chrome of an old one .