Thanks to BeFreeForMe.com, the internet’s resource for food allergy related coupons (including Celiac Disease), it looks like General Mills is currently offering a coupon for one FREE Betty Crocker gluten free mix of your choice!
According to the official BeFreeForMe.com blog:
To redeem your free box, call General Mill’s customer service number at: 1-800-446-1898, which is the same number listed on the Betty Crocker boxes. Then, at the main menu press “4”.
When you make the phone call, you will be prompted for some information, including zip code and address, and a few questions such as whether or not your household is limiting gluten or completely gluten free, and where you normally shop for your gluten free foods. Note: General Mills does promise not to share or sell this information.
Although it this time there is no known end date for this promotion, it will take 2-3 weeks to recieve your coupon, so you may want to make the phone call sooner that later.