Jack, I'm not sure if it will work but maybe you should clear your cache and try again. Don't forget to set your steam visibility to public as well.
If it still doesn't work, adding the link puppetmaster gave you in your signature will have to do until maybe an admin can help.
P.S: If you click on the 2P AT tab in your playercard link, you can see that you've played with Numbers.
Relic Entertainment
cblanco ★ 
보드카 중대 
VonManteuffel 
Heartless Jäger 
