I'd be happy to point out all the UX disasters, and sources of user frustration, anger, and rage, but I'm not being paid as their consultant. It's impossible that they are unaware of this, so I assume there must be arrogant management who don't even bother to ask the customers how they feel.
It's time to apply standard, beginner concepts in web design and UX. There is no need for anything fancy. Just common sense would make the experience less painful. If you're a FedEx staff trying to fix your UX disaster, fell free to use my enraged customer outcry.
Yours truly. Frustrated customer.