When i submit online the form for N600K how i pay?I dont have us bank account.Can i make a money order from my Greek bank and mail them?For online submit has any area that i can upload a copy of the money order?How i can pay from abroad when submitting online?I read the instructions but it doesnt say how to do it.only sais money order,check and credit card.But it doesnt sais how i would do that.