They don't want to fail either.
However, if they fail three times, the You Sha Society will cease further attempts, and within a millennium, they won't accept any more contracts to assassinate this person.
As for the money spent by the one who placed the contract?
Once the money reaches the You Sha Society, there's no talk of refunds.
In fact, after the first failed attempt, the You Sha Society will assess the reasons for failure, and if they feel the target's strength far exceeds estimated, they might even increase the price.
If you don't continue to pay, then sorry, we will no longer pursue the assassination.
Initially, the slogan of the You Sha Society was that once a contract was accepted, it must be completed, and after one failure, they would pursue non-stop.
Later, they pursued a prodigy of the Yin Yang Sect, and after three consecutive failures, that prodigy also became wise and hid within the Yin Yang Sect.
