It now appears that Dairy Queen can promise you a free Blizzard ice cream treat, not deliver on its promise, and there’s nothing you can do about it.

An Oregon woman who didn’t get her free Blizzard has abandoned her proposed class-action lawsuit against the restaurant chain, after it pointed out that she gave up her right to sue by accepting the coupon offer in the first place. Now every other customer who might have had their own coupons declined won’t be able to share in any potential settlement.

Mariel Spencer of suburban Portland, Oregon sued last year, after Dairy Queen promised a mobile coupon for a free small Blizzard treat to anyone who downloads its mobile app and registers for an account. So she downloaded the Dairy Queen app and activated the coupon to redeem at a local DQ, which was listed in the app as participating in the promotion. But when she got there, she was told the offer was not accepted at that location. And then her coupon expired – unused and worthless.

Dairy Queen has explained that many of its independently-owned franchises don’t participate in the free Blizzard promotion, though it seemed unable to explain why its app said those locations actually would accept the coupon.  Entire article from Coupons in the News here.