Wagering is how many times a bonus must be played before it can be withdrawn. It is not the percentage on the banner and not a promise that the money becomes yours. It is a line in the bonus rules.
Example. A 10,000 bonus at x35, counted on the bonus only, is 350,000 turnover. If they multiply deposit plus bonus, the same number is roughly twice as heavy. The line “what is multiplied” matters more than the x35 itself.
Then check which games count. Slots are often 100%, roulette and live are 10% or excluded. There is often a cashout cap: you clear the wager and can withdraw only part of it. And a deadline: the bonus expires if you are late.
Short version: x35 means nothing without three lines. What is multiplied, what counts, and whether there is a cap and a deadline.
Discussion
My rules multiplied deposit plus bonus. x35 suddenly became twice as heavy as the banner suggested.
The cashout cap cut harder than the wager itself. I cleared it and hit the limit.
Live counted at 10% for me. Until I read that, I thought the slot was the problem.
Seven days on x40 is almost never realistic on a small bankroll. I check the deadline before the percentage.