They intentionally mislead customers. Sales people sale a product that does not exist. The company will try and weasel their way out of paying employees back for money spent. Don't spend anything on your personal card and do not spend a lot of time in your own car. If they can question the cost, they will, and they won't pay you back.
Get everything in writing. If it isn't in a written document some place, they will not honor their word.