Facebook on Facebook
Facebook does not have a Business Page that is manned by their customer service department, but there are plenty of ways to get help. Call instead. One reason that ,so few customers prefer to speak with businesses over Fb is that the conversation is more private than, say, a conversation with Fb over Twitter.
And generally, if a Fb option is available and their customer service department actually operates it. They likely have a big enough customer support operation to also communicate over the phone, by email. And of course we build tools to make communicating any of these ways even easier and less time-consuming. So far we have not built any tools to accelerate or improve communication through Fb, but we may soon. Particularly for companies that are on Messenger.