Sonic Drive-In

Please see app receipt, shows a total charge of $49.73 which is an impossible total for one burger (3.99), 5 onion rings (24.45) and one drink (3.29) at regular price. They claim they cannot combine promo (1.29 onion rings when ordered in app) and happy hour prices. Their happy hour is 2-4, purchase was made at noon. But yet they show the promo being applied to a bogus total of $49.73