On magnifying the picture, I spotted a very faint 'n' in the bottom right corner of the pickup. Gong to the Nordy website, you'll see the 'n' is very faint but there. So there's one thing. The next thing is that someone added a piezo pickup. This is definitely not an 'original' bass. It's been modified, and some buyers will be upset that it was presumed to be a 'stock' MM.
Given that the OP sold it unintentionally as a stock bass, he should refund the money back to the seller. Quickly as possible. I can't imagine how a grownup would miss those obvious changes on the bass. My judgement: Immediately refund after you've received the bass. Also pay for return shipping then refund the original complete amount. That might be a good lesson for next time he sells a bass to watch the details.