travel companies truthful????

Advantage rn travel company states they do not pay housing, travel ect....they clam they pay a higher rate and implemnet a program called "tax advantage" where they claim you make more money. I requested today that I did not want to do this program and requested them to give me a quote based on monthly housing stipend, travel and hourly rate........so far, I have not heard back from her......Therefore, I am now looking for another agency....I currently am with Fast-staff but it seems that M/S positions are lean. Any suggestions????