We are planning to use paypal in our application and here is our scenario we have subscription based application but we charge the customer at the end of the month based on usage they used so we are calculating the amount at the end of the month to particular customer and then we need to charge them from their credit card what they have saved.
So which method is best to achieve this?
So there are two things we need.
1. We need to verify their credit card when they saved in our system.
2. We need to charge them every month end based on their usage so amount is not fixed. So we are planing to run some service that run and calculate amount our end and then one by one each customer charged.
Please help us which payment method is best suitable from paypal to our requirement.
