The great thing about moving off of Livejournal and to our own website is that we can disable user edits and user deletions entirely.
Chesta, since you may be reading this: I'm sorry to tell you but users don't have that ability. When you've completed the work, we will mark it as resolved. The only person who has had control in this situation is you, and so far you've driven your client to have to speak publicly to get any kind of recourse. That's not their fault, but yours.