You'll win but it won't be as significant as the good amount that we usually get from betting with certain matches and high odds. It's like getting something for free and you don't expect to get the best from it.
Dear it is free spins. If you think free spins give bigger amount so it is not possible.
In betting you bet your amount than you get the reward. In this if you win than you will get your amount.
But free spins are free and in this case you will never get big amount and not sure that the withdraw will be possible or not.