Wasn't pleased with the fact you couldn't retrieve the BTC so was looking into it again. (No need for a 2nd reward though.)

Is there a possibility you tried a "BTC doubler" or HYIP scheme by that time?

The address: 37zfKL5EqsokYztEj6yrJxeJah52CgJixG is connected to a forum user: https://bitcointalk.org/index.php?action=profile%3Bu%3D778507

This user / wallet is connected to some ponzi schemes. Source.
(don't know how i could oversee this yesterday)

Probable websites (not advisable to visit them, i haven't checked for malicious activities!):


I can't find any related websites to the other wallets though.