How Do I Reach The Corporate Office For The Thomson Georgia

I made a $45 purchase to be delivered from pizza hut in thomson Georgia, when it finally arrived the pizzas were burnt and the breadsticks half cooked and the wings still raw. I've tried contacting the management and she says my order doesn't come up in er system....and corporate has spoken with me told me the store was informed but the store says no can't find it. Corporate told me I would get a store credit and my whole order would be eplaced it's been 2 weeks nothing yet what do i do