Facebook & Instagram

Having problems posting on instagram it seems FB has audio and instagram does not. I have a second issue I would like to mention, I have been threatened for the past several months from someone saying they are meta they say I have violations and copyright infringements. I have replied may many times, and all i get back is the same old messages saying We have been trying to contact you. Then after a few months they say I am being sued for something. I have requested SO MANY times that they should send me exactly what the problem is so I can address it directly. but this has been going on for months now. Can someone at META contact me directly and stop this harassment.