A promotion is worth exactly what its terms allow you to keep, and the number in the headline rarely decides that.
That is the first thing to check in any offer, here or anywhere else. Winnings you can withdraw straight away are worth what they say; winnings held as bonus funds behind a turnover requirement are worth far less until it is met. The rest tells you whether the requirement is reachable at all: the minimum odds that filter which tickets count, the expiry window, and which games contribute to the turnover.
Campaigns rotate, so the promotions page on the operator site is always the authority on the amounts and dates in force today. The guides below explain how an offer is read, not what is running right now.