Ok so I listed my heatwave and guy responded that he wants to buy it. So I added him in steam he showed me this (https://i.imgur.com/2YZX2Y0.png) then we traded (https://cdn.discordapp.com/attachments/319910370439593985/406963094980395019/unknown.png) and I realized that I did not received money. Is there anything I can do? Thanks in advance…
The person gave you that screenshot of Gameflip? Please note that screenshots can be forged.
Following the Gameflip guideline, you should have waited for an automated notification on Gameflip (not by a user that may pretending to be the buyer). To make sure, you could have asked the person for the order number which only the seller and buyer know.
You should read these guidelines first before selling to avoid being scammed.