Facebook complaint: Asking for Help, I can’t log in to my Facebook account

I was locked out of my Facebook account on 18th December 21, because I missed a message from Facebook about changes regarding security. I discovered on 19th December that I couldn’t access my account and they refused at acknowledge my password as proof that it is my account! I went around in circles for 3 days trying to recover my old email account connected to facebook , and explaining that I no longer have a way of using the old email address and my phone is broken so I am unable to use my related phone number. I answerd their questions about comments I have made in the past 3 months but still I was rejected for access . Facebook told me I am using the wrong password, I know that I am not, but have tried every password that I can remember using over the past 12 years.
I have emailed Facebook twice asking for help to be able to log back into my account and explaining everything, offering as much proof as I can that it is my account and I need to be let back in… be able to log in, They haven’t even emailed me back with an acknowledgement, I feel desperate and heartbroken, my facebook account doesn’t only have a business account attached to it, it has everything in that account.. it is my life line to my family and friends, my fundraisers for charities for children with brain cancer, my groups that I have made, and groups I admin for, I am at a total loss about what to do .. and all of this during the Xmas period when needed my account so that I could be in contact with my family. Please can You help me?