A client came up with an unusual request. They wanted to build an online shop, what was unusual was that because of the value of the things which they were selling, they wanted to offer credit card monthly instalment payment. Now I know on a retail level the shop just keys in the number of months plus the interest rate when you make a purchase.

But how do you do that on the internet? do they even offer services like that on the internet? The normal payment providers don't seem to have a solution for us, I wonder if I'll have to talk to the credit card companies directly?

Anyone ever done something like this before?