They do have a color called Pure White. Could it be a stock 'pure white?' Couldnt the 2 mean 2022?That product is 10-20 years old!! Pure white has not been a base forever. The batch number WN2330, WN is the mfg facility 2 is the year, so 2012 or most likely 2002, 330 is the day of the year. Sounds like someone is hustling you. But you can easily check the sku against what you sold him.
Anyway, it looks like they dumped some crap in there to hustle you.