Hi. I don't know if I'd call it a problem. I can say that I, too, ordered a PC CE from the SE store. They charged it to my credit card (in full). Within a few days, there was no record of the transaction on my credit card at all. Companies normally don't bill your CC until they ship your product, so this seems normal. To me, the odd part was charging it to begin with.

It's irrelevant but I ended up canceling my order and ordering a PS3 CE from Amazon instead. But I just wanted to let you know that what happened to you also happened to me, and I don't think it's a problem. I think your pre-order is safe. If it makes you feel better you could log into findmyorder.com (if you ordered from SE Store) and checking to make sure it's still there.