    # File lib/active_merchant/billing/gateways/plugnpay.rb, line 154
          def credit(money, identification_or_creditcard, options = {})
            post = PlugnpayPostData.new
            add_amount(post, money, options)

            if identification_or_creditcard.is_a?(String)
              post[:orderID] = identification_or_creditcard

              commit(:refund, post)
            else
              add_creditcard(post, identification_or_creditcard)
              add_addresses(post, options)
              add_customer_data(post, options)

              commit(:credit, post)
            end
          end