iDine Rewards Network Inc.
                            11900 Biscayne Boulevard
                             Miami, Florida 33181

                                     [LOGO]
                                  iDine Rewards
                                    Network

     To the Holders of the Series A Senior Convertible Redeemable Preferred
Stock of iDine Rewards Network Inc.:

     This letter is to inform each holder of Series A Senior Convertible
Redeemable Preferred Stock, par value $0.10 per share (the "Series A Preferred
Stock"), of iDine Rewards Network Inc., a Delaware corporation ("iDine"), that
iDine is offering to purchase for cash up to 2,474,576 shares, or 61.1%, of its
currently outstanding Series A Preferred Stock. iDine is offering to purchase
the Series A Preferred Stock at a purchase price of $10.62 per share, net to
the seller in cash, without interest thereon (the "Purchase Price"), subject to
the terms and conditions set forth in the Offer to Purchase, dated June 13,
2002 (the "Offer to Purchase"), attached hereto, and in the related Letter of
Transmittal (the "Letter of Transmittal"). Capitalized terms used but not
defined herein shall have the meanings given to them in the Offer to Purchase
or the Letter of Transmittal.

     The Offer is not conditioned on any minimum number of shares of Series A
Preferred Stock being tendered. There is no financing condition in the Offer.
We can, however, terminate the Offer, in our reasonable discretion, if any of
the conditions of the Offer described fully in the Offer to Purchase under the
caption "Conditions of the Offer" have not been either satisfied or waived by
us, subject to the terms of our Stockholder Tender Agreement described in the
Offer to Purchase. iDine reserves the right, in its sole discretion, to waive
any one or more of the conditions of the Offer at any time as set forth above
and described more fully in the Offer to Purchase under the caption "Conditions
of the Offer."

     The stockholders of iDine are not required to approve the Offer. The Board
of Directors of iDine, acting upon the recommendation of its Preferred Stock
Committee, has approved the Offer and has determined that the transaction which
is the subject of the Offer is fair to the unaffiliated holders of Series A
Preferred Stock. However, none of iDine, its Board of Directors or the
Preferred Stock Committee thereof makes any recommendation to any stockholder
as to whether to tender or refrain from tendering shares of Series A Preferred
Stock pursuant to the Offer.

     Enclosed with this letter are the (i) Offer to Purchase and (ii) Letter of
Transmittal. We urge you to carefully read the enclosed materials. If you
require assistance, you should consult your financial, tax or other
professional advisors. Holders that wish to participate in the Offer are asked
to respond promptly by following the instructions set forth in the Letter of
Transmittal.

     Our information agent, Georgeson Shareholder Communications, Inc., can
help answer your questions regarding this tender offer. You may call our
information agent toll free at (800) 452-4222. Banks and brokerage firms should
call our information agent collect at (212) 440-9800 with any questions.

     Thank you for your time in reviewing this Offer.

                                            Very truly yours,

                                            iDine Rewards Network Inc.