alipay is not suitable, due it is a chinese company that charge in rmb in your account and then convert to your local currency as i understand on their website, and website is not very friendly , no guideline or faqs. And if really charge in rmb chinese currency, many banks will block these payment probably.
international bank transfer is expensive for all, even for receiving it need to pay some fees so is not a choice, only good if amount is big .
we will try this Payza , at least website seems ok.
we used skrill moneybookers too but they don't allow sell flashcard too and freezed our account , after half year money still there not recovered