I saw that happen on IW once, back in the days of Steve Whatley. He was shocked when it happened, but, to his credit he didn't let the gallery cut the lady off, he let her have her say live on air! After that, things did start to improve!
I find IW still knock spots off QVC though. I recently ordered some items and when it arrived, sadly one of the items was incorrect. I emailed IW's CS to ask what I can do about returning it. I received a very nice and apologetic email that also contained a link for me to download a Collect+ label so I can send it straight back for free. No being called a liar, or having to wait a week on the chance a label might show up in the post. Fortunately for me, I have a Collect+ drop-off spot opposite where I live, so it couldn't have been easier. As said earlier in the thread, given how much QVC charge for their services, this should be standard for them, especially as we know so many other retailers can provide it. I don't see how they can keep calling themselves the #1 shopping channel anymore.