Replace or delete woothemes destination URL in Theme options -> Advertising banner Top Ad
For some of my clients i enabled the Advertising Top Ad banner option without the destination URL filled in. Then, all of the sudden, there is the www.woothemes.com URL again, it seems to appear out of the blue somethimes after an update. Could you please leave this aside or at least replace this woothemes url by another url (www.example.com).
The same problem arises with the twitter on the superstore theme, all of the sudden displaying 'woothemes' in the header...