Ds 160 for nigeria Business invitation. A business invitation letter from the sponsoring company in the desired destination nation. The letter need to be printed on business letterhead stationery, addressed to "The Consulate of Nigeria, Visa Portion", and signed by a senior manager. The enterprise letter have to adhere to https://www.tumblr.com/africred/754895200092094464/studying-abroad-made-easy-with-africred-visa