Must use your e-mail address in promo/bundle code to get the Discounted Price.
Click the Promo/Bundle Box , the put in your e-mail to receive the discount at the end.
Don't not try to schedule a retest for the same day. You can not retest on the same day per CO state regulations. Your appointment will have to be rescheduled if you schedule a re-test on the same day as any other drive test.
E-mail or call to get your promo code if you didn't receive one.