# File lib/active_merchant/billing/integrations/nochex/notification.rb, line 77
          def acknowledge
             payload =  raw

             response = ssl_post(Nochex.notification_confirmation_url, payload, 
               'Content-Length' => "#{payload.size}",
               'User-Agent'     => "Active Merchant -- http://activemerchant.org",
               'Content-Type'   => "application/x-www-form-urlencoded"
             )

             raise StandardError.new("Faulty Nochex result: #{response}") unless ["AUTHORISED", "DECLINED"].include?(response)

             response == "AUTHORISED"
          end