Originally Posted by Komentra
Actually, you can. You're not supposed too but the majority of the time eBay doesn't do anything. Worse that's happened to me is having listings removed and banned for 7 days.
I've got nearly 550 100% Positive feedback and the majority of it is from selling codes.
Listen. You can't do it anymore unless you put it in the classified section where you'll get zero visibility.
eBay has gotten very strict just in the last few months. I already linked their official policy and unless it is digital content you created and you are the sole owner you can't sell it. Period.