Response to: WCF Web Service Error

Revision 2
I guess, it is a problem with config file - Endpoint binding
The binding should be wsHttpBinding

Could you please have a quick look into the binding value you set in endpoint

<endpoint>
         address="" 
         behaviorConfiguration="httpBehavior" 
         binding="webHttpBinding" bindingConfiguration="testWebHttpBinding" 
         contract="[your contract name]" />
</endpoint>

Hope this solves your problem

cheers