Urgent Facebook Account Recovery Help

My personal Facebook profile has been taken over and I can’t log in at all. The linked email address is still under my control, however every password-reset attempt now stops at Facebook’s prompt for an Authenticator PIN that I set up but due to phone reset cannot access it... (Budget: ₹600 - ₹1500 INR, Jobs: Account Management, Facebook API, Facebook Development, Facebook Marketing, PHP, Security, Social Media Management, Social Media Marketing, Technical Support, Twitter)