I think that you need to contact with Facebook administrator or contact with those people who are arranging Facebook features for knowing that the libra coin is officially Facebook launched coin or not.
If it is released, they will surely announce it on the official channel. So we don't need to contact them in any way because we will definitely never get their answers. Libra is definitely coming but we don't know the exact time yet, we need to wait for Libra to fix the issues related to the laws of the countries.