Ask HN: Recurring Payment and Merchant account providers in Asia.

I found wealth of information on US / Canada / UK based providers based on following link & additional links posted under it on this topic.

http://news.ycombinator.com/item?id=41303

In your experience which are the best recurring payment solution and merchant account providers in Asia?

What would you think are the key criteria to choose a recurring billing solutions provider? (with most Asian currencies)

FYI, I have also posted the question under StackOverflow to pick the brains of the developer community, to understand based on implementation experiences.

http://stackoverflow.com/questions/5388589/recurring-payment-processing-and-merchant-account-solutions-primarily-asia

Thanks.