Well, this was a halftime bet. But, yes they can claim "bad line" and cancell ANY BET anytime they want. I got into a big argument with a manager from 5 dimes last year during the college bowl games because they waited until the next day to cancell a bet. In this case it was cancelled during the 3rd Q. I didn't think about it being a "bad line" until the others on here brought it up. Then I pretty much knew it would be cancelled.