I have to pay for exames fees that i am taking next week.
Adding onto the message above, I highly doubt that you would have forgotten to save up for your exam fees. If you did, then tough luck; take better care of your responsibility next time. Good lesson learned, if that's the case. I'm shooting in the dark here since I don't know where you're located, but don't a lot of schools allow people to pay for the exam with plenty of time to spare before the exam itself?
Anyways, if you're serious about your education (which you should be), just ask your family for a couple bucks.