u/kitty_catz_r_life

I am new to selling on eBay, I had someone message me asking if an item was still available and I told them yes. They then proceeded to say "Awesome, btw I’ve paid for the item & delivery. The app said u need to confirm it and showed me this... Can u pls scan ’n confirm?" With a ss and a QR code attached. Is this actually a thing or am I going to get hacked if I scan the code? Everything in me is saying it's a scam, but I wanted to ask people who are experienced... Thank you!