Dear

In reference to your letter of     [date]    , we have
no record of having received the merchandise you returned.

In order to issue you a refund for the $_______, we request
that you provide us with the following information:

      1. Date you returned the merchandise
      2. Form of shipment (UPS, Postoffice,etc.)
      3. Copies of any correspondence to us in regard to
         returning merchandise

Your cooperation in this matter will enable us to trace the
parcel.

Thank you for your help.  I will be looking forward to your
letter.