Exhibit 16.01 Office of the Chief Accountant Securities & Exchange Commission 450 Fifth Street, N.W. Washington, DC 20549 April 9, 2001 Dear Sir/Madam, We have read the relevant information referring to our firm in Item 4 included in the Form 8-K/A dated March 2, 2001, of CC Master Credit Card Trust II filed with the Securities and Exchange Commission and are in agreement with the statements contained therein. Very truly yours, /s/ Arthur Andersen LLP Arthur Andersen LLP cc: Ms. Tracie Klein First Vice President First USA Bank, National Association