If bounty managers and Sapien's team claim that it was written "up to 5%", then this phrase is fraud. From a legal point of view, you deliberately deceived a large number of people. You should have written the following "up to 5%, but not less than x% or x dollars". This phrase was not written. There are many screenshots where you can see "5% on the bounty". It follows that you deliberately misled bounty participants. Where, by the way, is the public offer? Do you provide services under this agreement? Or are you generally legally illiterate?

Following your logic, you can pay ZERO. After all, zero is up to 5%. Ask any investigator of the prosecutor's office - this is an example of the usual SCAM.