I'm confused. Is it your friend who is applying to Arik, and needs you to back up (co-sign) his bond? Or, is it
you who is applying and needs the bank involved in some manner?
The only thing I know about Africa and Arik is what I've been following here, and I haven't heard a bond mentioned. Is this Arik or the agent you're planning on using? Be careful! A fool and his money are soon parted... especially in Nigeria, it seems. I'm not implying that you are a fool ... it's just an old proverb.
Perhaps someone who actually has some knowledge can chime in ... I know nothing but can smell a rat.