Constant spam from Verizon.net

I am at a loss for what to do.

I'm taking spam messages at the rate of 6,000 per day from a specific e-mail
address linked to several Verizon DSL IP addresses.

I have sent numerous logfiles to both security@ and [email protected] and
have received no response.

I have spoken with their tech support numerous times and both they and their
supervisors say they can not help, they claim the e-mail addresses are the
only recourse.

Does anyone have any other contact information?