Problem solved,
Here's their response, which came rather quickly"
Ellen
Hello,
Thank you for contacting Sony Connect!
That was a hold charge to make sure your credit card was valid. That should be removed from your account within 24 business hours. If the information I have provided does not completely answer your question, please update this incident so I may be of further assistance to you.
Sincerely,
Robert
Customer Support Representative
Sony Connect
http://www.connect.com