Another case of mistaken identity

[ffutures]

BlueCross BlueShield of South Carolina are sending me reminders to pay my bill on line. Since I am British (and we have Eviiiiil socialised medicine) and have never had any sort of account with them I suspect that this is related to the person whose medical test results were sent to me a few weeks ago.

Does anyone have a way to contact these idiots by email that doesn't involve being a registered customer or something?

Update - solved thanks to Livejournal's jgd; I contacted them via their "Report fraud" contact page, and hopefully they'll sort it out.