Text Link Ads - Publishing Without Consent?

I really like Text Link Ads, but sometimes their system seems to have a mind of its own. A couple of days ago their system was kind enough to inform me that some inventory had been sold AND approved. I hadn't approved it, so what is going on? I checked my account and sure enough, the inventory had been sold and assigned as active. Although I contacted them about this glitch I never got a reply ... Has anyone else had issues like this?