Facebook blocking an elderly ladies account!

I just want to make a complaint on behalf of an elderly lady (81 years of age) who I was assisting with her computer. She went into hospital for 2 weeks to have surgery on her knee, and on her return, her Facebook account had been blocked. No explanation as to why her account had been blocked, and when she attempted to recover the account she was informed that the time period to dispute had lapsed and so there is no way to recover her account, it is permanently blocked! I have attempted to reach out to Facebook, however it is impossible to speak with a human, and so I have no way of helping her. She is now disconnected from all her friends & family. @ Facebook, I understand that big business needs to make use of AI systems to help with the influx of support queries, however you need to have an option for human interaction for more complex issues. Please kindly reach out so that we can help this poor old lady reconnect with her friends & family.