The gist of "wagering requirements not met" is simple: spins are worth less than they look. Free spins are the most common casino offer and the hardest to value at a glance. Each spin has a fixed stake set by the casino, often the smallest the game allows, and the winnings may land as cash or as a bonus with wagering. The number of spins in the headline says little until the spin value, the selected games and the terms on winnings are known.
Winnings from free spins usually arrive as bonus funds with their own wagering requirement, often counted on the winnings alone. Some offers pay spin winnings as cash with no wagering at all, and those offers tend to give fewer spins. A requirement on small winnings can still take a long session to clear, and the balance may run out first. The terms state which of the two applies, usually in the line that describes the spins.
Free spins expire, often within a day or a few days of being credited, and unused spins simply disappear. Larger offers are frequently released in daily batches, each needing a login or a fresh opt in, so missing a day can mean missing a batch. The winnings from the spins then have their own deadline for wagering. Noting both dates when the spins arrive keeps an offer from lapsing unnoticed in the middle of a busy week.
Quick answers
Why do no wagering spin offers give fewer spins?
Paying spin winnings as cash with no wagering costs the casino more per spin, so those offers tend to include a smaller number of spins.
Is there a limit on what free spins can pay?
Many offers cap spin winnings, especially spins given without a deposit, and anything above the cap is removed when the bonus converts to cash.
Do free spin winnings carry a wagering requirement?
Often yes, frequently counted on the winnings alone, and even a small requirement can take a long session while the balance runs down.
Who decides the coin size on free spins?
The casino fixes it in the offer terms, often at the smallest stake the game allows, sometimes stating it only as a coin value.
How is the value of a free spin offer worked out?
Multiply the number of spins by the stake of each spin; a hundred spins at the lowest stake can be worth less than twenty at a higher one.