SCAM 
Okay please axplain us from HBC why you say that? Service Unavailable
The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.
Apache/2.4.10 (Debian) Server at backend.homeblockcoin.com Port 80 25 minutes! and it steel down! you are scam!
The same thing happened to me too ... many people have no way of taking coins
a fairly limited project on this point of view