“This may come as a surprise to Citigroup, but the law does not allow one company to own the word ‘thanks,’” said spokesperson Fletcher Cook in an email. “We’re going to continue to say thanks to our customers.”
Why people hate lawyers. Reason 42: suing over frivolities.
I heard this on the Clark Howard show [radio] ...I think he mentioned that Citibank registered the words with the Library of Congress, to get the exclusivity.