I was recently involved in an attempted scam when I was trying to sell something on FB marketplace. Luckily right at the eleventh hour I realised what was happening and managed to get out of it. I immediately tried to get help from FB support but there was no ‘real’ help available. It took me to a suggestion on things I could do (which weren’t an option anyway as I’d already been blocked by the scammer) and offered no help or support whatsoever. Terrible experience!