Alright ... some facts, some opinions:
1. I'm 100% sure that CBS never ever meant to post the -800/+605 odds, and that they made a mistake and really meant to post -500/+300. BetCBS is virtually "unscalpable", and there is no way they meant to hang +605.
2. I'm 95% sure that, had Areef's bet lost, CBS would NOT be refunding any or all of Areeff's losing wager.
3. I'm 99.9% sure that this bet was part of a scalp, which makes it all the more painful, as
Areeff is out of pocket at the other shoppe(s) where the other leg of the bet lost.
4. Their posted limits are $1,000 for tennis matches within 24 hours of the match. Thus, there was no problem with the amount of money that areeff bet on the game.
5. Areeff made a big mistake by not calling CBS either immediately before or immediately after placing the bet, to confirm that the line was OK.
6. Areeff was wrong when he said that he had several other betting options (books) with +500 and +550 odds. This was not the case.
7A. This was a -500/+350 mismatch on paper. There were +400s out there; Pinnacle had +435. It would not be out of the realm of possibility to think that some shoppes might hang a +600 (I have seen this happen MANY times).
7B. However, anyone who has placed more than two bets at CBS knows that it won't be CBS purposely hanging the +600. They'd be the last book to do it.
---------------------------
So, what's a proper solution:
If Areeff is betting $1,000 on a +600 underdog, the guy has been doing this for awhile. He probably knew that the +605 at CBS was just a little bit too high for that shoppe, yet he took a chance.
No doubt, CBS had no intention of putting up the +605, but it wasn't a blatant palpable error. This number enticed a bettor to set up a scalp, and now the voiding of most of the bet has cost Areeff significant money on the losing legs of the scalp.
In my opinion, an acceptable solution would be to pay out the winnings on the full $1,000 bet at +435, which are the odds that were available at Pinnacle at the time.
These were the best available odds at a competing "mainstream" shoppe, and one can reasonably assume that Areeff would have placed his bet there if he knew that the +605 at CBS was not a good line.