A "bank account" established with a payment processor for the settlement of credit card transactions. Any merchant who wants to take credit card orders must establish a merchant account. Internet merchants need a "Card Not Present Merchant Account."
A payment gateway is a combination of systems and processes that enable merchants to electronically submit payment transactions to the payment processing networks via the Internet. More specifically, payment gateways provide the necessary Internet infrastructure that enables merchants to accept credit card payments via the Web.
Why are Merchant Services only currently being offered in the United States?
The offering of merchant services outside the United States is much more complicated. It is often easier for a business owner to contact their local bank to setup an account than it is for a third-party to establish that service.