Borderland 2 and Dishonored

Sync your account again.

You synced your account, so steam show that you have these games. Noone can do anything about this.

Only solution - force account sync in steamgifts before any free weekend :P

Here's the reason.. Free Weekend + Sync of your account

Well I didn't sync my account those day.I just visited my profile few days ago,maybe it was kinda auto synced or something.I did try to sync again but it doesn't work.Poor me :(

Thanks for answering guys

Try sending in a support ticket to have valve remove it. I don't own the game either but it's stuck on my account too, only I can't actually play it because I don't own the license of course.