The Nigerian government recently questioned whether Microsoft chairman Bill Gates could afford to support himself during a planned visit to the African country.
According to a report on Gizmodo, Nigerian officials required proof that the world's richest man would not reside in Nigeria indefinitely and cause a strain on social services before granting him a visa.
Travel and visa assistance company CIBT helped Gates to overcome the problem by obtaining a letter from his bank vouching for his personal wealth. The Nigerian government then issued Gates with his visa.
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