Still nothing solved. The account is working but withdrawal still suspended, no answer, nothing. For your own safety please don´t use Bitmex anymore.
They have announcemeant thread here but they are not active for answering question even their Ann they are not giving any updates years already
Its been a month since you experience that problem I think its better to open an accusation already so they can hear your voice as long as you can prove anything with your claim.