IIRC, all periods to recover things from "Moltdown" have expired. But you can try get more info using Warmane email support.
Also, you've neglected your account for 7 years and now ask to give you something quite valuable for free. It doesn't seem fair or reasonable at all. There's nothing to give you back because you didn't pay for it (according to Warmane coin policy), neither does server, where you belongings were, exist (and again, you've ignored it for 7 years but want compensation for it now).