Develop Payment Portal for bulk sms application

We want to develop Payment Portal for our bulk sms application where clients can order for sms units and admin can approve units Client Features Client can order for sms via bank deposit and credit card Client can view transaction history Client can view rates and price Admin Features Admin can approve transaction admin can set special prices for users Admin can set different prices for different reseller plan Admin can set set client status Admin can set bank details, activate or deactivate payment method Admin can create new order Admin can send mass mail Admin can assign payment Methods to country