The event of my registration for the SAT I and SAT II Subject test is drawing nearer and nearer by the minute, and yet I haven't any idea, exactly, HOW (payment method) do I pay for it, since I haven't found anything in the CollegeBoard website. I'm from the Philippines, which is a fact that, according to the website, disables me to avail a fee waiver, so it is very important for me to know how to pay. Is it supposed to be in cash, or check or through credit card or whatever measures that are beyond my knowledge? And I've seen the registration and it's asking about an SS number, I haven't got one, is it mandatory?