[shabun]

I'm new to sports betting, but this looks too good to be true.

Need some help -

You bet $1100 on the Steelers v's Miami using the -5 on the dropdown box. If you lose you get your money back, but I assume if you win you get your stake back plus $1000.

Sorry for being new to this, but I can't see how its possible to lose. Can any of you guys help me understand?