Citibank's Credit Card Customer Service Mystery: Does S. Larson Really Exist

This is an interesting mystery for many Citibank credit card customers.

From the Wall Street Journal:

People who use Citibank credit cards have wondered about that for around two decades. S. Larson sends them letters -- millions of letters. S. Larson always signs these letters in the same diligent hand of a grade-school penmanship student. The words "Customer Service" appear under S. Larson's name. S. Larson has no title. S. Larson has no gender.