hi,
I'm designing a portal for a law firm.In this portal,all of users can have credit account in the site, two types of users is defined: for general users this credit is 0$ and for customers the amount of this credit is based on their payment. customers can use services.Using some services may deduct their credit. Some services has no fixed price. e.g you can ask a question and lawyer who will reply your question, determines this reply costs 12$,
if your credit was 20$, now u will have 8$ remained in your account.
Is there any third party module to manipulate this system? May be, I must use combination of several module, if yes, which modules?
I think it's a bit like a help desk, isn't it? Is there any help desk module provides payment gateway?