The GFCF Diet Support Group Please allow 5 to 10 business days for delivery. To order by mail : Send check to: The GFCF Diet Support Group P.O. Box 1692 Palm Harbor, FL 34682 There are two email addresses listed below to contact us with questions about your order. email products@gfcfdiet.com OR sdehart1@tampabay.rr.com Printed material, books, DVDs carry a 30-day money-back guarantee. EXCEPTION: FOOD ITEMS, VITAMINS AND CALCIUM LIQUID PRODUCTS ARE NON REFUNDABLE. Yummi Snack Pak ships FEDEX to U.S.A. All other items ship USPS.