Seeing this late. You should be on ground by now.
My 10 naira worth;
When you need stuff while in any country, ask for it. Reading online that something is impossible in so and so place does not necessarily make it so.
Think about the people you ask questions, most answers reflect just what the people you ask know rather than what is available and remember a lot of people aim to please rather than direct you to a better source. (I know, its basic info but you will be surprised at the way people turned answers into gospel).
Port Harcourt, Nigeria