set up service charges in iReceivables by customizing the package ARI_SERVICE_CHARGE_PKG.compute_ser

Hi,

Can anyone tell me how to set up service charges in iReceivables by customizing the package ARI_SERVICE_CHARGE_PKG.compute_service_charge since each customer has different payment card types.

I know we also have a look up called 'AR_IREC_CREDIT_CARD_TYPES' where we can set up the service charge in the DFF for each credit card type.

My question is, when a customer selects a MASTER card or VISA or AMEX that is on his online account, how should the above package be customized to look for the service charge or Surcharge percentage defined for the type of card. Which tables need to be linked.