Lithuania student visa requirements for nigerian citizens Business invitation. A business invitation letter from the sponsoring business from the destination place. The letter should be printed on enterprise letterhead stationery, resolved to "The Consulate of Nigeria, Visa Part", and signed by a senior supervisor. The business letter must adhere to https://www.quora.com/profile/Africred/7-Ways-Africred-is-Shaping-the-Education-Sector-in-Sub-Saharan-Africa-https-africred-org-https-africred-org-visa-a