If there is clear evidence that they changed their terms and conditions than i advice you to head over
here and open up a scam accusation. Just make sure you include all the details pf how you were cheated and if they have profiles around here, DT members will tag and flag them
Otherwise, stop joining useless bounties and airdrops of fake coins and projects. They will waste your time and also collect your KYC details which they can later sell off.
modifying rules and terms is okay . they can do it because they are the owner and you as a normal user only ,you cant do about it but if they changed it to something that isnt right and way too obvious to scam you well that is a different story anymore .
hunters should take extra precautions these times were the crypto inustry is now healthy or becoming popular and scammers/fraudsters see it as a new nest or oppurtunity . just dont join and join newer projects without them observing first .