Ask HN: Is there a way to contact Facebook?

I posted a dumb pretend ISIS flag with dildos and now I am banned from a whole lot of things (Instagram, Messenger - I'm supposed to be going to a festival on Saturday and the organisation for that is done via messenger), and there doesn't seem to be any way at all to contact anyone or sort this out. Absolutely ridiculous that company as big as this does not have a phone number.

Actually considering taking the tube and rocking up to their office at this point because this is fucking stupid.

I've submitted my ID several times and received absolutely zero response. This might just be the worst customer service ever.