Quote from: bertig on December 20, 2013, 04:37:12 PM

Hi

I've been also screwed by this so called "Mark Niggerson" (see post https://bitcointalk.org/index.php?topic=231645.msg3736230#msg3736230)
and had e-mail communication with him.

Look like he is in UK ... i know UK is big but maybe someone have better knowledge than me to find people ...

Mail 1)
Wed, 20 Nov 2013 14:30:09 -0800 (PST)
Return-Path: <more.coffeeee@gmail.com>
Received: from [127.0.0.1] (dab-far1-h-65-1.dab.02.net. [82.132.220.197])

Mail 2)
Wed, 20 Nov 2013 14:37:29 -0800 (PST)
Return-Path: <more.coffeeee@gmail.com>
Received: from [127.0.0.1] (dab-far1-h-65-6.dab.02.net. [82.132.222.130])

Mail 3)
Wed, 20 Nov 2013 15:07:34 -0800 (PST)
Return-Path: <more.coffeeee@gmail.com>
Received: from [127.0.0.1] (dab-far1-h-65-4.dab.02.net. [82.132.221.208])

Mail 4)
Wed, 20 Nov 2013 15:13:27 -0800 (PST)
Return-Path: <more.coffeeee@gmail.com>
Received: from [127.0.0.1] (dab-far1-h-65-6.dab.02.net. [82.132.222.130])

if it can help ...

Most ISP's in the UK use dynamic IP addresses (as you pay extra for a static IP). However they're all O2 owned IP addresses.
You can file a complaint to the police (http://www.actionfraud.police.uk/) and include the IP addresses.

The Police can query O2 who can put the IP address to a customer at that specific times (very easily infact).

I would also file a report to abuse@o2.co.uk for racism (user's name) and fraud.
They'll kick him off the network pretty quick, especially if you've already reported the matter to the police and obtained a crime reference number.