This could all easily be a scam - fish out for borderline copyright infringment, threaten the author and ask for money (But really? IBAN and bank transfers to an anonymous entity? Surprised they are not using Western Union.)
It could also by a copyright troll but IMHO they would try to appear a bit more thorough with their notices.
Last edited by alenppc; 23 January 2015 at 22:18.