Ok, the Citywalk restaurants are no longer on the CC site. You may find them later, maybe in the later fall. I read that the Citywalk certs may be returning in the fall.
Some citywalk certificates are available. You would have to check expiration dates.
To get these certificates, you can check this very board. Some of us have just returned and have extra. I bought all of mine off this board, and it was a painless process. Usually someone will post they have extra, and you would email, or PM them for the extra.
You can also check Ebay. Some people sell them there.