How to handle a POST request coming to a web service url

Hi,
I have implemented a webservice - Test.Asmx which expose 2 web methods say: A() and B().  I am only handling the web service portion. Another team is using my web service. I was under assumption that the client team would be using our exposed web methods. But later came to know that they would just POST request to url :http:\\\\ webservice.asmx. In such a case with minimal effort how can I can use my exisitng code to handle this? ICurrently I have created ASP.Net web service. I am allowed to work in VS2010. Require urgent help

Thanks