SOAP server returns unexpected Action

Question

We are trying to implement a client that connects to a server using SOAP. We are using a WSDL file to generate the client class with the svcutil.

So far I have managed to get the communication working so far as to send a message and receive a response. However the framework receiving the command refuse to accept the answer because the client has added some kind of namespace and servicename (I think) to the Action.

I send a command with the SOAP heading Action: /GetMyTransaction which comes from the WSDL file, and to this command the WSDL states that the expected ReplyAction should be /GetMyTransactionResponse.

However in the response the Action is set to urn://foo/bar/:someService:GetMyTransactionResponse. Now I'm no SOAP export, so I don't know if this actually might be a valid response. It contains the correct Action but it also contains other stuff. Also, the generated file is not accepting the different Action.

So my question is: is there some way to tell the ServiceModel to accept the additional data?

Now there is the possibility to manually edit the generated code and enter the full Action, however the same code should support other servers that does respond as expected, so I can't just edit the generated file and insert the extended Action. (Unless maybe there is some kind of wildcard that I could add to the ReplyAction property in the OperationContractAttribute.