Ah right, I do seem a little confused on this issue now. There was either a problem on the server which meant you couldn't log in or that IP address was blocked for multiple failed log in attempts - I doubt the two things happened at once.
I would, personally, seek clarification from support as to whether there was a problem which erronoeusly denied you access or whether the IP was blocked for multiple failed log in attempts - there seems to be 2 explanations for one problem here!
PS - regarding my last post - everything apart from the "EDIT" section was written before I saw your post above which is why I ended up editing it
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