I have a level 49 enchanting crafting writ ready for turn in. It tells me to turn in with the Fighter's Guild Provisioner.
An alchemy writ was turned into a Magicians Guild box in the Hollow City. However, for this writ, it shows the turn in as being in the Hollow City. And then, it updates such that the marker is outside the gates. The marker doesn't appear in other zones.
Is it possible the turn in is in Craglorn? Haven't progressed there yet but have read that turn-ins occur there as well.