The credit card company, apparently, intends to file a 1099 reporting the "forgiveness of indebtedness" to the IRS. "Forgiveness of indebtedness" is the amount you owed the credit card company less any payments which were made in the Chapter 13 plan. Debts discharged in bankruptcy are not considered income under the tax law, so the W-9 doesn't apply in your case. I would advise you not to send it back.
Answered on Dec 11th, 2014 at 2:40 PM