Facebook

My Facebook account have been hacked, the person who hacked my account changed all my contact details. I can't enter my Facebook, I reported it to Facebook, I got into my Facebook account but can't changed my password, I am waiting for a code. But Facebook keeps on sending the code to the hacker. The hackers used my photo of my kids to make a false adverti*****t and posted it on my wall. I want to delete that Facebook account but I am not succeeding. What can I do?