Depending on how long you've had the DSG, you might check out your state's cool-down period law (if it has one). That is, as long as the dealership doesn't have a disclaimer for it posted. I think South Dakota allows a cool-down period (let's you change your mind within a certain number of days), but the dealership I got my wife's car at had a disclaimer posted that revokes the cool-down right. Beyond that, you can just hope your dealer is very lenient and really wants to keep your business. They'd be happy to sell you another car, I'm sure.