No, you should not lose your benefits and if for some strange reason that did come to pass I think that you could fight it and win them back.  You are not required to take a job for which you are not qualified JUST to have a job.  Its like telling an accountant that they have to take a job in McDonalds just to be working.  You were not qualified for that job and the employment agency did exactly as you said: they misrepresented the job and its requirments and really wasted your time. So do not worry.  Just take each days as ti comes and keep on looking .  Evenntually something will come up.  Good luck to you.