Most of gambling casino is giving a lot of free spins to the player who makes a deposit with a designated amount also have designated spins as rewards but the free spins are just bonuses but it doesn't give the same value as your spins just like cents and those free spins more likely having a range from 20$ winnings I'm not saying they are giving with this amount but a possible average of winning, still ideal you have enough budget to play more spins to get a huge amount of multiplier, don't get rely in free spins only its just bonus deposit.
Free spins for deposit is a kind of
bonus by making a deposit, the same promo as a deposit and get a 100% bonus to your account balance. However, if you get free spins from slots, it's really different. It doesn't depend on how much you are making deposit, but are we lucky or not from our spins to get the feature and making a double money from multiplier bonus during spins we get. And about the reward also depend on our luck, nothing else.
correct me if i misunderstanding what you mean here