I am developing a site where i need to charge a customer according to usage say if user has opted for a $20/month plan for 200 mins and he uses 200+ mins then he would be charged accordingly.
I am using the Customer Information manager API (CIM) for this and need to know how the payments are handled for the same. Does Authorize.Net automatically charge the customers credit card and deduct the money from there account or only billing is done by CIM? means the CIM only does the billing and not the payment process and if only billing is done then do i need AIM for payment process?
