I someone harms you and won't apologize and correct the mistake, then you must take them to court or they will simply keep doing it. Nobody but a court can help

I someone harms you and won't apologize and correct the mistake, then you must take them to court or they will simply keep doing it. Nobody but a court can help you. Nothing else that you or anyone here can do will get you the results that you want. This has always been true, even before Facebook pointed it out on their website. Talk to a lawyer about it. A reputable lawyer won't charge you for an initial consultation, and they may know of any shortcuts that exist (such a contacting a regulatory agency, if one exists). Ask if closing your advertising account qualifies as tortuous interference, if that concept exists in your jurisdiction.