Few months before my facebook group with 350k members has been deleted without any notification. is there any way to recover it?
Yes , If you contact to support
Can you give me advises?
I don’t have a link of Facebook support
You mean if i contact some1 as personal message?
No. You must dm to facebook support team
I tried, but they wont answer me
You should try to search on this website : How Do I Contact Facebook Support When I Need Help? - SocMedSean - Social Media Sean