Switzerland student visa requirements for nigerian citizens Enterprise invitation. A company invitation letter from the sponsoring business within the destination place. The letter ought to be printed on company letterhead stationery, addressed to "The Consulate of Nigeria, Visa Portion", and signed by a senior manager. The business enterprise letter will 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