Poor Customer UX / UI – Prime Time Shuttle Review

***USE UBER / LYFT POOL instead*** During last phase of registering, app prompts for Coupon/Promo codes after entering your credit card info. The current promotion (PTSAPPNOW) gives an error message: Code used to maximum. Back out to previous page but it confirms my reservation instead. No final 'Review page' given for reservation and no clear indicator if the entered time is for ARRIVAL or PICKUP. And now I lost $5 for canceling.
Review by WearShoes on Prime Time Shuttle.