Hacked facebook account

• My facebook account was hacked
• Hackers changed my email address
• Facebook amended my email address
• Facebook sent me a link to reset my password
• I'm unable to reset my password
• Facebook sends me a code to my email, I enter code, type in new password, but then I am asked to enter a code from code generator, I cannot access my account so I cannot set up code generator and so cannot receive a code from code generator
• how do I reset my password without a code from code generator?
• is there a way facebook can set up my code generator? Can they then send me a link to reset my password?
• is there a way facebook can send me a code from code generator by sms or email to reset password?
• can facebook reset my password and send me a link so that i can reset my password with my password?
• has been over a wk, I'm really upset and frustrated that I cannot find a solution and facebook doesn't reply to anybof my emails and online requests

I've sent facebook my ID few times in hope of their help

Please help thank you