This happened a few days ago, and since my boyfriend will not advance on the subject, I will. This has happened to him twice now and he is on the verge of quitting Guild Wars because of it. He loves the game, but mistakes like this are just not acceptable and A-net will not refund for it.
Anyway, my boyfriend is currently trying to make a Legendary weapon after helping me with mine. We both started farming for T6 mats(Powerful blood, Vicious fangs, etc.) and he was able to get almost over a 100 of each mat by the time Molten Facility was taken away. However, a few hours after the Facility was taken down and A-net had to perform yet another patch that same day, all the mats just disappeared from his bank.
We thought maybe someone hacked his account, but if that was the case, they probably would have taken all his gold and items too, but he still had every last penny and item. I asked if maybe he sold them, or moved them to another character, but there were no T6 mats anywhere and he didn’t have any extra money in any characters nor did he have money waiting for him in the Trading Post.
That’s when we came to the conclusion that maybe the patch took away the items since it has happened to us before on other MMOs due to coding problems. Unlike the other MMOs though, A-net says they will not refund the items or even look in to it. “We are sorry to hear that” is the only thing we get from them.
I spent 6 months making my Legendary, and I will tell you now, it was a lot of work. Both he and I put hours into this game, and promoted it to a few of our friends because it is one of the best MMOs we have played. If A-net really valued their customers, they would take the few minutes to check player logs or something to help out.
And I am sorry that this happened. But while I cannot say why it happened, I don’t think it’s related to a build. What are your ticket numbers? It may be helpful for me to see the history on the ticket.