Can't obtain a response from WCF service - objective-c

Question

i have a trouble when i try to call a web service made in WCF, this service is calling by Mac os x app.
this is the code
soapMessage = #"{name:\"Sergio\"}";
NSURL *url = [NSURL URLWithString:#"http://localhost/GSBonoServicios/GSBonoService.svc/HelloWorld"];
NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url];
NSString *msgLength = [NSString stringWithFormat:#"%d", [soapMessage length]];
[theRequest setHTTPMethod: #"POST"];
[theRequest setValue:#"application/json" forHTTPHeaderField:#"Accept"];
[theRequest setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
NSData *requestData = [NSData dataWithBytes:[soapMessage UTF8String] length:[soapMessage length]];
[theRequest setHTTPBody:requestData];
NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self];
The connection is successful but didn't a response, i try implementing some tutorials and I'm looking in Stackoverflow and i find many answers but nothing works, i hope you can help me.
ps. I do not speak much English, but I hope I explained, Thanks

Answer 1

Finally I found the solution the problem was in the service, and the code that works is
NSString *name=#"Sergio";
NSDictionary *tmp = [[NSDictionary alloc] initWithObjectsAndKeys: name, #"name",
nil];
NSURL *url = [NSURL URLWithString:#"http://www.myserver.com/Servicio/ServicioEjemplo.svc/HelloWorld"];
NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url];
[theRequest setHTTPMethod: #"POST"];
[theRequest setValue:#"application/json" forHTTPHeaderField:#"Accept"];
[theRequest setValue:#"applicat ion/json" forHTTPHeaderField:#"Content-Type"];
NSError *error;
NSData *postdata = [NSJSONSerialization dataWithJSONObject:tmp options:kNilOptions error:&error];
[theRequest setHTTPBody:postdata];
NSLog(#"JSON summary: %#", [[NSString alloc] initWithData:postdata
encoding:NSUTF8StringEncoding]);
NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self];
Thanks