While you had them on the phone you should have had them ban the auto filled message asking if an item is available.
Update on letting Muse run Facebook Marketplace for me. So I’ve spoken to @dps and the Muse team tonight and we went through the log to figure out what went wrong. Regarding the address leak. The first thing that popped up from Muse when asking it to handle my Facebook- While you had them on the phone you should have had them ban the auto filled message asking if an item is available.