Hi,
Why dont you create an automated system where a customer can signup and pay for it using paypal, paypal express...etc and automatically add credit to their account.
I know afew people go with oempro because of their payment system instead of interspire.
This would be a great addon. A payment gateway for service.
In interspire, we would setup multiple user groups initially as well as pricing for monthly credit and never expire credits.
An ...