not sure about that but here is some info on the changeabet
What is Change A Bet
Change a bet allows qualified bettors who believe that they may lose their bet to adjust or change the bet they have confirmed. Bets placed on football or basketball games maybe adjusted before the end of the third quarter.
--------------------------------------------------------------------------------
How Does Change A bet works?
Change a bet reduces the amount of money a player may lose by returning a percentage on a cancelled game. Normally a player would lose all the monies involved in a bet. With change a bet a player can save up to 90% of each sure lose bet.
--------------------------------------------------------------------------------
How to change bets
There are four ways in which a player may change his bets. Each must be done before the third quarter ends or second half begins.
1. Bet the other side of the game. Bet must be placed before the end of the third quarter.
2. Bet another game. The other game being bet could not have started. Bet must be placed before the end of the third quarter.
3. Cancel the bet. Bet must be placed before the end of the third quarter.
4. Change teams in a parlay. Bet must be placed before the second half begins.
--------------------------------------------------------------------------------
Rules for Changing Bets
1. Bet changing is a privilege and not a right. CAB reserves the right to reject any “bet change” request.
2. All players must play for at least 21 days to be qualified.
3. Bet changing is limited to basketball and football sides, totals and parlays.
4. Halftime, second half, quarters, teasers and proposition bets may not be changed.
5. All bet changes on sides and totals must be done before the end of the third quarter, and parlay changes must be done before the second half begins.
6. Players may only make one change per bet...
7. Vigs are not refundable on changed bets.
8. Players may not exceed the original lay amount when changing to bet the other side.