Misprints - Do they pay you?

[wannabet]

Example is that right now I'm seeing a line that is -135, but I think it's supposed to be +135, they just typed it in wrong.

What if they typed it in the other way, so they would be +135 instead of -135.. If I bet do they have to pay me, or can they cancel, after I already confirmed the bet? They would probably only cancel it if they lost the bet, otherwise they would take your money.

[Mudcat]

A bet on an erroneous line like that will almost certainly be voided whether you win or lose. It is an industry standard to do that.

Only shady books would deal with them as you suggest. (But those books are out there.)

There are players who will take a shot at those lines. There is always a longshot chance it may slide through. Personally I don't bother.

Some books actually will give you a little bonus if you inform them. I've known it to happen.