An official of NIMC, who spoke on condition of anonymity, said they would only attend to those booked since February 19.
Ms Odusote said they were going to use the National Identity Numbers (NIN) and Subscribers Identity Modules (SIM) databases to track them down.
The NIN-SIM integration deadline was initially moved from December 30, 2020, to January 19, 2021, and later extended to February 9, and was moved again to April 6.
The order came in the wake of serious public health concerns, following a surge in coronavirus cases across the country.
