I'm getting the following after clicking on the Buy Credits button:
on IE9:
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The security certificate presented by this website has expired or is not yet valid.
Security certificate problems may indicate an attempt to fool you or intercept any data you send to the server.
on Firefox 9:
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This Connection is Untrusted
You have asked Firefox to connect securely to billing.vs.com, but we can't confirm that your connection is secure.
Normally, when you try to connect securely, sites will present trusted identification to prove that you are going to the right place. However, this site's identity can't be verified.
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