Yes, there are restrictions on where you can play with your casino free spin bonus.
• You can only use the casino free spins on certain games. For example, if a game has no bonus rounds or other features that make it more attractive than other games, then it may not be eligible for use with your casino free spin bonus.
• You can't use the casino free spins on progressive jackpot games (e.g., Mega Moolah). This is because casinos don't want players to get lucky and win big money without having paid any money into them first!