There are dealers and then there are Dealers. PA is a dealer. Airguns of Arizona is a dealer. Some guys buy and sell but I don't consider them dealers. There are regular sellers on the gun auctions. If it's a gun shop, that's a dealer. If an individual, I don't care if they have a thousand sales, big Ebay rep, etc, they are not dealers. If you buy from a real dealer (shop), you should get what is advertised. I had a gun shop misrepresent a rifle once. They said it had wood proud around the buttplate "as normally found on these guns". When it came in to my FFL, I looked at the butt and saw it had obviously been standing in water (or really used as canoe paddle, LOL) and the wood had swollen. Plus it was covered in light pitting. That one went straight back for a full refund and I don't buy from them anymore, no matter how good the deal sounds. Not saying you won't get burned once or twice, same as with used cars. But readily apparent defects in a new gun or substituting used for new is not to be tolerated and is fraud in the inducement when they are held out to be "New in the Box", "Unfired", "Perfect in all respects", etc.
How about letting us know who sold you the used for new? I'd like to know for future reference.