Germany student visa requirements for nigerian citizens Enterprise invitation. A company invitation letter from the sponsoring business during the destination nation. The letter should be printed on firm letterhead stationery, addressed to "The Consulate of Nigeria, Visa Segment", and signed by a senior supervisor. The enterprise letter should adhere to https://www.tumblr.com/africred/754895200092094464/studying-abroad-made-easy-with-africred-visa