Exhibit 15 Letter Re: Unaudited Interim Financial Information December 6, 1995 Securities and Exchange Commission Washington, D.C. 20549 We are aware of the incorporation by reference in the Registration Statement (Form S-4) of CUC International Inc. of our reports dated May 31, 1995 and August 29, 1995, relating to the unaudited condensed consolidated interim financial statements of CUC International Inc. which are included in its Forms 10-Q for the quarters ended April 30, 1995 and July 31, 1995. Pursuant to Rule 436(c) of the Securities Act of 1933 our reports are not a part of the registration statement prepared or certified by accountants within the meaning of Section 7 or 11 of the Securities Act of 1933. Ernst & Young LLP Stamford, Connecticut