PayDollar is a multi-currency, multi-lingual, multi-card and multi-channel processing platform by AsiaPay. The platform is supported by over 100 banks across the Asia-pacific region. Some of the features offered include Multi-level user administration control, post-payment data feed support, Real-time void, capture, refund request and sales adjustments, Instant payment notification via email & Real-time fraud detection and blocking feature (ePayAlert).
In Hong Kong, the most cost-efficient Payment Gateway is GoCoin with a transaction rate of 1% and no additional costs in setup fee or yearly maintenance. However, you may miss out on some of the security features like two factorPayment Gateways (Hong Kong)