Collection of Goods (Paladin Charger Quest) Bugged

[Witness]

I have in my inventory all the necessary materials:

6 Arcanite Bars
10 Arthas' Tears
40 Runecloth
5 Stratholme Holy Water

As well as the 150g necessary to complete the quest, but Grimand Elmore
doesn't show that I'm able to turn it in.

Help?

[Witness]

Thread bump, this is going on 4 days with no solution. I want my 100% mount!

[Robotron]

Delete your WDB folder and try logging in again. If that doesn't work, abandon the quest and pick it up again.