The scammer never had a ''list'' to begin with, so it's just one more lie, and you will continue to get similar calls, and probably from numbers less obviously spoofed than this one.
Several of these scam operations have been killed by the FTC since 2010. Much more needs to be done. Pour on the complaints, folks. See older discussions on the credit reprice scam under these numbers : 714-244-5025, 402-982-0479
Here's a link to a site which helps explain the scope of the problem: