如何让QA测试我的Web服务，而不是强迫我测试他们的Web服务客户端？

I work on a number of web services and virtually every time I produce a major build, QA starts throwing up bugs that I frequently find have nothing to do with the server side code, but rather with their crap client library. I've tried to at least make it policy that they don't file bugs without the XML that they're pushing to the server, but they frequently ignore this requirement. I work on a number of web services and virtuall