I know her story . She is quite genuine .
Seriously not that I want to pour cold water but first of all the
bond is a 5 figure sum. No stranger will risk their money doing
that unless they are millionaires with spare change because they do
not know you and also because they will stand to be left picking up
the pieces should it be broken.
Perhaps an alternative is to work weekends and supplement your
study with a loan from a relative or financial help from your
parents. It might be the best way . Besides you are not obligated
to stay and work for the hospital if they piss u off alot.