Hey there. Bungie will only reply if they intend to overturn the ban or need further information. While the ticket remaining open may look like it is being ignored, they just haven't been closing them after review, not sure on the reason why they do this, might be something to do with preventing spam from repeat appeals. Also, as you've mentioned, you know the ban reason. Bungie's standpoint is always that A) account security is our own responsibility, and B) they ban by account not by individual user. As unfair as that might sounds, Bungie isn't going to overturn a ban from a claim of 'it wasn't me, it was someone else'.