You can try firstlogic in the address below.
That was where I did mine, they got excellence facilities.
Lagos, Ikeja Office, Plot 30 Oba Akran Avenue, Ground and First Floor Wema Bank Building. 650 square meter office space with 7 classrooms, IT Exam center, Academic Exam Center, cafeteria, with ample packing space
Email- [email protected]
Tel: - +234-1-7920286, +234-1-8124412.
Goodluck!!