Okay so we got our USCIS approval on October 23, 2023. Since then, I've been continually following up with the NVC to see if they have recieved our case and literally nothing as yet! It's literally been over 95 days! I'm going insane over here!! Anyways on February 18, our I797 expires. Who on earth do you contact to extend the I797? Look forward to any help.