Are you being serious right now ? how was the hacker able to change the recovery number and email of you email account? what email provider do you use, I am asking because I know  that if you are using Gmail, then, a hacker can not change you recovery number without having access to your phone, I have changed the recovery number of one of my Gmail account recently and I was sent a verification code to the old number which I entered in a box provided before my recovery number got shifted to the new one I provided.

Sorry to say this but I kind of find it hard to believe your account hack story, are you sure you didn't try selling your account and buyer asked you to send account details first and you foolishly did, the buyer then hijacked your account and refused to pay, and now, you want the community to believe your account was hacked....this is me thinking