You need to be a member of the new Burger King Royal Perks loyalty program. Account registration is required.
Celebrating the 64th anniversary of the whopper, rolling back prices to 1957.
Via app. Order one whopper for 37¢ (expires today) If you are cheap, add a value fry for $1.
Hopefully someone will see this that is out and about. and can make use of it.
Sorry, I forgot. I was going to post this yesterday.