Still waiting for the inclusion of Linux PC in your "PC" plans. Be glad Valve pushes its Steam Play / Proton development or you would not have seen me investing time (and money) in your game anymore. You should really change your terminology to "Windows PC" or just "Windows" if you don't plan to release on all the OSes…
1. Start a ticket. 2. Upon receiving standard reply, reply with "Please forward my ticket to your supervisor." 3. Keep restating your issue and asking for a supervisor to handle your ticket. 4. Ask supervisor to forward your complaint to the correct department. The supervisor is the ONLY one who can do this. Normal…