If you still can't see those games on your lists/shelves, try using this link and let me know if it
helped:
https://secure.gog.com/account/refresh/

I refreshed your list manually, and XIII seems to have been returned to your account.

Also, it turns out that the link I posted was outdated, and shouldn't have contained the /en/ part. Everyone else, please use this link to refresh your list: https://secure.gog.com/account/refresh .
StingingVelvet, I also took the liberty of editing the bad link in your post - I hope you don't mind. :)

Furthermore, we recently discovered that the games list/shelf search field does not like uppercase characters, so, until we fix this, make sure to search for xiii instead of XIII, for instance.