This is for my brother.. who has noting to do with Bitcoins... He had to pay to get his business data.
Bitstamp just confirmed that non of their users use this email address.... which most probably is for Multibit or something like that...
Multibit is not a service, its a wallet and as such does not require an email address.
IIRC the last time[1] someone was asked to pay a bounty it turned out the data was not proberly encrypted, but I dont remember if it was found out too late or not.
[1] as in the last time there was a thread here about it I noticed.