While playing The Win Zone, you will have two sets of coins, Gold Coins, and Sweeps Coins.  Gold Coins are used to play our games, and these can be used for fun, while the Sweeps Coins are able to be used to redeem real prizes.  Before you can redeem your Sweeps Coins, you must cycle through your Sweep Coins at least once before they are redeemable, meaning you need to play them in any of the games.  Whatever Sweeps Coins you win back from that play are then redeemable and can be used for real prizes.