I killed Mythic Sikran just before the last weekly server reset and made a top roll for a wrist mail item, but because of the long wait of some Warrior transmog roll the item haven’t been rolled before the server reset and just gone after.
I have screens so I can attach it if needed. The customer support pointed me on this forum.
Hi Сангвигоса,
I’m sorry to hear about this, sounds like some pretty unfortunate timing 
Unfortunately Customer Support wouldn’t be able to manually recover any loot, and if it wasn’t sent by the postmaster it would sadly be lost.
I hope you can still get the upgrade you were after another time!