Which 3rd party merchant account allow partial refund?
I am looking for a third party merchant account. I would like to know which one allow partial refund? The reason I am asking is if we bill client bi-annually or annually and half way through the contract, they decided to upgrade their account. It would be a pain to do the billing. I know Revecom doesn't allow partial refund. What about 2checkout, ematic.com, hostcharge and any other 3rd party merchant???