I realise this may be a bit of a stupid question coming from me but has anyone ever had any dealings with this ebay book seller?

http://www.ebay.co.uk/itm/ARNHEM-THEIR-FINAL-BATTLE-THE-11TH-PARACHUTE-BATTALION-1943-1944-Gerrit-Pijpers-/140987587563?pt=Non_Fiction&hash=item20d383dbeb

I’m curious who he/they are?