A friend told me he didn't get paid by them, unfortunately he was so stupid not to have a contract so they told he was volunteering. Verbal agreements don't mean nothing as in most places here, just a warning. I think it's a great experience for you but they could easily add a digit (0) to that salary for the price they ask their guests and the hours of work. Make sure if you sign a contract you have a trust-person that is able to confirm it matches the english version. Keep us posted on your decision please.