It's seems a default Opera browser plugin from Netcraft doesn't like ccBill.
Not huge surfer volumes, but every % counts.
There was a thread about it on the zoo, and ccBill is apparently looking into it. Still no resolution yet as far as I know.
Warning Message(
german):
...the site you have called was reported as fraud - they will try to get personal or financial datas from you - opera recommands urgently not to visit that site ....
http://www.gfy.com/showthread.php?t=...ighlight=opera