I looking at the bet slips inside outside and I figured out the reason of our misunderstanding. Rendering of bet slip HTML page is confusing. When you place bet on AH/EH away team, the handicap sign is inverted.

In fact, you just made a bet on UAB -14. Because you bet on away team, it's rendered as -1 * -14 = 14. It seems that this need a fix.

EDIT: You can see the confusing print, when you add a home side AH and then you change it by clicking on the away side of the same AH line. AH line sign is rendered with opposite sign.