Hi- Welcome to Just Answer and thanks for your question. Your question throws up a red flag, since there is no requirement of a Basic Travel Allowance (BTA) in any country of the world. The BTA used to be a term describing the maximum amount of local currency that could be exchanged and taken out of a country, but this term isn't use anymore. Unfortunately, if someone is asking you for money, you may be dealing with a potential scam. Please take care and be aware! Requests for money coming out of Nigeria have been shown to be the work of scammers time after time. Many others have reported being duped by people using the need for a BTA to ask for cash. Please click the green ACCEPT button so that I can receive credit for my work. Positive feedback and bonuses are always greatly appreciated!