NABTEB NOV DEC OLEVEL card is a product of National Business and Technical Examinations Board. It is used to register candidates for NABTEB Private Examination.
If you are transferring from OPAY, please use Paystack, do not use Flutterwave if you want to Transfer using Opay or Palmpay.
Visit https://novdec.nabtebnigeria.org/
and enter the PIN and Serial No and follow the registration steps.