How to complain about spam thats originated from BigPond Members

How do I complain about spam that's originated from BigPond Members?
Please let us know about any spam you believe has originated from the BigPond network through our Misuse of Service web form.
BigPond have limits in place to reduce the amount of spam originating from our network, but if you've found spam originating from our network, we want to know about it.
Spammers are good at manipulating email to make it look like it's from someone else – if the sender address looks like jumbled characters before the '@bigpond.com', like mnjaliehtrn@bigpond.com, the address has probably been randomly generated by the spammer and probably isn't from BigPond.
The way to check for sure is in the email header.