Hi Atze,
I just got it working and see an envelope returned when debugging in C# as you can see below. Only difference is that I didn't include the webmethod in the webrequest url. Would that fix your issue? Else just let me know and I send you both test projects.
So use
HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(@"http://localhost:8080/ws/Published_web_service_test");
instead of
HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(@"http://localhost:8080/ws-doc/Published_web_service/SoapRequest");
Regards,