I've tried it. I filled out the email, call the phone number and was instructed to key in the code from my email. But it kept rejecting the code. It seems yahoo could not match the code they sent to my recovery email. Since a code was sent to me, i presume that the recovery email still exist. But why wouldn't it accept the code it generated itself?

I have two recovery emails. And tried it. The second recovery email got blocked for no reason. Could the account be compromised and now affecting the recovery email ?