I found a similar story from years ago. Seems the OP is legit, Terranova is a study group ONLY, and cannot provide CFO approved testing. Since I have never talked to them, I don't know if they misrepresent that they are accredited.
Here's a thread in a non-firearms forum;
http://forums.redflagdeals.com/pal-f.../#post12061806
There's a few recent (this month) youtube vids and postings about TN being a scam... but that could just be OP. But the sketchy site, god wants you to have a gun, and multiple sources saying there's actually no testing says stay away.
OP, if it's a scam, call your credit card company and start a fraud claim. They are not selling the service they advertised. Refer your CC company to the website where they say they're licensed to provide the test. No license = fraud. I'd also call the CFO's office, and perhaps the police.