Facebook Stole $120 From Me

I have two.. no, three of these charges on my bank account today.

I have never purchased an ad on Facebook.

The "Facebook Ad Manager" for my account supports this.

More worryingly - I have never given Facebook my bank card information. I've never purchased anything from a Facebook game, or Facebook credits, or anything else.

So... you know? I'm kinda spooked right now. And the fact that the phone number Facebook has given with the charge leads only to instructions to fill out a web form (which then says "We'll contact you in 48 hours") fails to assuage my suspicions.

Update: I've had my bank card cancelled since it may well be a case of a stolen CCN... but that seems an awfully odd thing to spend money on.