Can I sign up if I operate business overseas? Or business should be based only in U.S.?
You can sign up for Rezgo no matter where you are located. Please note however that Rezgo does not process payments on your behalf, so you will need a merchant payment gateway in order to process credit card payments through Rezgo. You can find out more about our supported payment gateways here: https://www.rezgo.com/features/payment-gateways/