I informed my office I fall into a scam. So should be fine. CCTV not at the moment as my house have dog so if stranger walk past they will barkCorrect. Just wait it out for their harassment tactic. The faster you take control of the situation the better.
Let them know you know their tactics by ghosting. Not a single thing they can do beyond those phone calls to your office.
Please disable your social media accounts if you have not done so. Other than that consider installing CCTV. Otherwise, you have covered your bases. Just need to ride the storm and your are done.