He responded back explaining how this is an epic quest, that it will take doing the whole quest line over again to get the item, etc. Here's the next response the GM gave...
Seriously these people are anything but customer service. They are anti-customer service if you ask me. You can't get a red scabard with out doing the whole quest over again. You need the dragon scales, blade from plane of sky, hand of maestro, etc. It's literally the last thing the quest giver gives you to finish the quest, and if they needed proof that he did the whole quest, all they have to do is look and see that his character HAS the two warrior epic one-hander swords. YOU CAN'T GET THEM WITH OUT THE RED SCABBARD.... O.O
I mean what the actual fuck is wrong with these people? Getting the red scabbard back does nothing to break the game. It has no stats. It is not wearable in any slot. It isn't a weapon. It has no effects. There is no clicky. It's nothing. It's just a container with ONE purpose... to swap between 2 one-hander swords and 1 two-hander sword. That's it. The fact that they won't give it back to him is straight up mind boggling.
He's literally like fuck it I'm done at this point, and I don't blame him. This game is ran by idiots.