Originally Posted by
VegasDave
Because their fine print protects them from bad lines, they will void all wagers where a mistake is made on their end.
By reporting it, you show them that you are honest. Sometimes you will get a freeplay or something out of it, but at the very least they know you did the right thing. And no one was going to get paid anyway so it isn't like you screwed over your fellow gamblers.
By betting it, you show them that you are willing to take shots when you can... at a bad book like BetUS where they consistently cheat on paying people, I'd rather not give them any reason to dislike me.