I would perhaps offer the seller to pay for the return postage and hopefully he will be willing to cooperate. Or just open return case: item not as described.Yes, I as well would think, that I should have a refund from the seller. I just don't know if she will give one, since the flaw was actually visible in the photo (although only when zoomed in on).
Do you know if this type of flaw is part of the generel quality issues with the bag and covered by the recall?
With regards to returning the bag to LV, it’s hard to say as it depends on the boutique and your CA. Their policies regarding returns became stricter in recent years, because of people buying cheaper bags just to return for credit. I had to only return once but the receipt was in my name.