Burger King introduces a ‘Whopper guarantee’ for unsatisfied customers The Independent 02:31 Fri, 24 Jul Article paywall
Burger King Introduces ‘Whopper Guarantee’ with Free Burger for Unsatisfied Customers People 21:34 Thu, 23 Jul
Hamburguesas gratis | Burger King presenta la "Garantía Whopper": la nueva política de la empresa si no estás satisfecho Clarín.com 14:58 Thu, 23 Jul
How to get a free Whopper: Burger King launches new guarantee The Sentinel, Pennsylvania 13:44 Thu, 23 Jul
Burger King Wants You Back: Its New Whopper Promise Might Actually Work The Takeout 19:48 Wed, 22 Jul
Burger King rolls out Whopper Guarantee as part of turnaround effort Marketing Dive 16:18 Mon, 20 Jul
Burger King Continues Turning Guest Feedback into Action with the "Your Way Champion" and Whopper Guarantee PR Newswire (Press Release) 14:02 Mon, 20 Jul
