I don't think they're legit. I bought a "wc" teug from them about 2 months ago. The fish I received was beautiful and healthy, but is most definitely a cb. The owner also confirmed that all of their polypterus are wc... I didn't get the impression he was lying, just misinformed.
Then again, I guess it's possible they have them from a different source or something now, since 2 months have gone by
Sorry, but these small teug coming in and available now are tank raised. They look nice and had one that grew out perfectly to 14". Regrettably I sold it last year.