These are the 10 classes of Nigeria driver’s license:
Class A – Motor cycle.
Class B – Motor vehicle of less than 3 tonnes gross weight other than motor cycle, taxi, stage carriage or omnibus. “Omnibus” means any motor vehicle that carries more than six persons excluding the driver while “Stage carriage” is an omnibus used for hire or cab in which a fee is charged.
Class C – A motor vehicle of less than 3 tonnes gross weight, other than motor cycle.
Class D – Motor vehicle other than motor cycle, taxi, stage carriage, an articulated vehicle or vehicle drawing a trailer.
Class E – Motor vehicle other than a motor cycle or articulated vehicle.
Class F – Agricultural machines and tractors.
Class G – Articulated vehicles.
Class H – Earth moving vehicles.
Class J – Special, for physically challenged persons.
Class V – Convoy driving (persons engaged in driving senior government or political office holders in stream driving).

Hello pls where is ur office in lagos and ur phone number.
thx
Office Address:
Ministry of Transportation
VIO OFFICE
OWODE ONIRIN BUS STOP
OPPOSITE OWODE ONIRIN MARKET
ALONG IKORODU ROAD
LAGOS
PHONE: 08033539981 OR 08182880902