Better send an e-mail coz he is also not much active in here. Last login was August 6
I am afraid Diggit.io has never provided a support email address, CMIIW.
The "help" page on the site just tells you to visit this thread if you want to contact a staff member.
Yes that is true diggit have very poor support like their hosting, if any player got problem than he have to wait for a long time until cryptofuture come online.