Have any kind of real proof where they come from?
BiPolarBob? It doesn't matter if you got them from him, but it at least gives a reason for you selling them under retail.
I see you have a few positive feedbacks on your Steam profile page and your Steam account is not "new" and "unused" for gaming, hence the playtime.
I may come back to you, soon.
In my country, most of the steam wallet is only sold in the form of code only. So I cant give you any pic of physical steam wallet that I bought.
Yeah, I'd never ask for giving me a feedback from my buyer. But I have done some transaction with some people from this forum too.