    # File lib/active_merchant/billing/gateways/net_registry.rb, line 88
          def purchase(money, credit_card, options = {})
            params = {
              'AMOUNT'  => amount(money),
              'CCNUM'   => credit_card.number,
              'CCEXP'   => expiry(credit_card)
            }
            add_request_details(params, options)
            commit(:purchase, params)
          end