Of course not, he's a scammer.
I was in doubt because they've promoted their scam project and claiming to make a refund, without any proof. But there's an user claimed he already get the refund, I don't think he's an alt of Betking. I guess you have nothing to lose to try it by contacting their email address.
Update: I just got my full refund!

Why is he advertising his "token refund" on the Gambling board anyway? The rules are
One thread per site ONLY. I've reported his topic:
To gain attention, the topic should be moved to service discussion (altcoins) board.