Can somebody explain a "hold" to me one more time?
A hold is basically just Limbo for money. It’s taken out if your account, but it’s not given to the seller. Once the transaction is confirmed, the money in the hold is given to them. If it isn’t confirmed, the money in the hold is returned back to you.
In this instance, you will only truly be spending $150 if you win the raffle. If you lose, your money is returned to you and you can do whatever you want with it.