I'm very sorry about this, guys, but there is very little I can do at the moment. It's a particularly frustrating issue, because these crap audio banners are running when I have explicitly excluded them. Because few webmasters allow them on their websites, audio ads pay considerably more money - but because I have banned them (and these ads are not legitimately running on GTP), I'm not even getting paid for the additional impressions!
Unless I sift through about 300 advertisers currently running on this particular ad network, my hands are tied. I have dropped ad networks in the past for not honoring my restrictions, and I may have to do it again. Please let me know if you continue to run in to these banners.