Peace Corps Student Loan Help!

Hello Friends! I made this website because I've officially accepted an offer from the Peace Corps and I'm supposed to leave for Paraguay in SEPTEMBER for 27 months (2 years, 3 months!). Unfortunately, Sallie Mae refuses to defer my student loan and I have no way to pay this while I'm in South America because this is a volunteer organization.I'm hoping with a little bit of help from a lot of my friends, co-workers, family, etc. I'll be able to pay this loan off and help communities in Paraguay learn about sustainable agriculture!