Definitely a scam, and I'm sorry you were targeted. Many scammers are posing as "Buyers", stating they need your email for an Order. They don't, Etsy already has it. When you receive a LEGIT Order, it will appear in "Orders & Shipping" (Left Column of Shop Dashboard); if it isn't there, you have no Order. Mark the scammer's Message as Spam (so you don't get dinged for S Seller). And never click on links or engage with them.
Scammers have been hitting new Sellers as well as seasoned ones. QR Codes is one of the scams. "Verification" is another, as well as posing as Etsy Staff/Support, etc. When you receive a LEGIT Message from Etsy Support/Staff, etc., it will appear in the "From Etsy" Folder (in Messages). If it isn't there, Mark the Message as Spam (so you don't get dinged for S Seller). *"From Etsy" Folder was not on the App until recently (a highlighted blurb on the Message). The thing is, should you not see this first (and be familiar with it), you could receive a scammer's Message beforehand. Also, the App does not allow you to Mark the Message as Spam (you must use a browser instead, or use the Buyer App).
Here is the Announcement about the "From Etsy" Folder (currently this is in past Announcements).
https://community.etsy.com/t5/Announcements/New-From-Etsy-section-in-Messages/m-p/143722497#M1899
Here is the other Announcement, "Protect Your Account With These Security Tips" (it is now in past Announcements).
https://community.etsy.com/t5/Announcements/Protect-Your-Account-With-These-Security-Tips/m-p/143158...
Hope this is helpful to you.
