I've seen AV-Sales mentioned quite a lot here with good comments so I thought I'd give them a try. First a couple of phone calls - no one in sales was available. Eventually left my number but no one phoned back. So I tried emailing instead. It took 3 emails to get a reply (having mentioned I didn't get one from the previous 2). After this I phoned to get a quote for my plasma bits. After going through all the options I was told I'd get a quote via email which I'm still waiting for. Have I just been unlucky or should I take this as a sign?