Security of your account on whatever platform is your sole responsibility so if you have lost access to your email, 2fa apps and so on, this all bounce back to you and the team have less to do for you in this case, since FB has a strong standing when it comes to users account security, their try as much as possible not to interfere with account security control which is why they introduced multiple layers of security features that give users total control of the account security.
Just as five-star stated, if you don't have much funds in the account, you may have to move on leaving that account unless you have a way of recoverying those details you have lost else were, although sometimes after going through alot of verification process, the support can help you deactivate the 2fA features on the account and have that email changed, but like I said this is almost an impossible task but some platforms get be such chances to their users when the lose their account details.