Auction House Mis-Attribution of David Hall

I don't normally do things like this, but this is bugging me. RR Auctions is having an animation auction that closes tonight. One particular lot is very clearly mis-attributed, the claim is that the lot listed is David Hall, and art by him is very sought after. I've contacted them about it and they agree and said they'd change the listing "...appreciate your email and we have decided to change the lot details to state that it is not a David Hall as you have stated." They haven't. By not changing the listing after they'e been alerted to the error and agreed, they are now actively deceiving their bidders. I don't know how else to proceed, so I thought I'd see if leveraging the social networks might get them to fix the listing before it is too late. It may already be too late.

Update:  The item has been withdrawn.  Go me.