Though you've been ignored twice as you've mentioned, try contacting them again. Your address: 16io8zfbhStqe9WVdHN3JLzc29D73okaoy was listed here :
https://bitcointalk.org/index.php?topic=277595.msg2974140#msg2974140 and since you contacted the support that time, maybe there is still chance for this case to be solved (though it's been a long time). Be sure to provide them all the proofs you have.
I guess I'm seeking for another way to approach them - I tried recently once and they closed the ticket, tried again and they closed it again.
I'm getting every time to the same support person that does the same.
I tried to write to the CEO and to the legal mail address and they haven't replied.
Anything else I can do?