Thanks for using the forums to get this issue with your services looked into, I am sorry if this has been causing some frustration. I would be more than happy to help you with this.
I have a link here - Phishing Help - which gives you loads of useful information on how to combat spam emails.
You can also forward these emails to email@example.com which will go to our phishing team, they will flag the email as spam, helping the servers stomp out these email addresses.
I also have a link here to a forum post which has helped so many other customer's with the same issue - My Spam Solution - please have a look and see whether this helps you too.
Sorry to hear that the links did not help. We do all we can to actively stop and filter out spam emails from coming into customers' inboxes, however some spam emails will fall through the net which can be beyond our control. Setting up filter rules on your email account can help stop unwanted emails from coming through, we have a page with more information here.