Australian student visa requirements for nigerian citizens Small business invitation. A business invitation letter from the sponsoring enterprise from the desired destination place. The letter needs to be printed on business letterhead stationery, addressed to "The Consulate of Nigeria, Visa Segment", and signed by a senior supervisor. The business enterprise https://www.tumblr.com/africred/754895200092094464/studying-abroad-made-easy-with-africred-visa