[PointBlank159]

Try hitting up Craigslist. Search up the item you're looking for and message the seller saying something along the lines of:

"Hey there, I'm interested in your laptop but I want to verify the S/N with MSI, do you think you could send me the serial number just so I can verify with support that it's legit?"

Most times people will turn you away because it sounds like a total scam (which it is) but sometimes you'll occasionally have a seller who will be willing.

I've checked Craigslist and ebay, but there are none that I have found unfortunately.