ok, clarification time (sorry I confused you).
you cannot buy back the reverse writ items if you sold them for status. If you sold them for coin only (a regular merchant), then yes you can. what I was referring to was selling the items for status and who will buy them. In Qeynos and Freeport, any of the writ givers will buy your reverse writ items (you can sell the items to any of the writ givers of that faction for status). so, for example, if you have a bunch of blackened iron relics, and you are in Qeynos, you can go to any of the writ givers for the Qeynos Guard faction and they will buy (you can sell to them) your blackened iron relics and give you status for them.
ok, I hope to god, I didn't confuse you anymore, but, please, if I did, send me a message here, or in game (I'll be in game for most of the night).