MrMcJay:
OP, write a petition detailing the details of this transaction to:

The Deputy Commissioner of Police,
State Criminal Investigation Department,
Lagos State Police Command,
MAK. Smith (Former Panti) Street,
Yaba, Lagos.

Also copy this address:

The Assistant Inspector-General of Police
Nigeria Police Force,
Zone 2,
Onikan,
Lagos.

Take a copy of the letter to the bank that you made payment to and make them acknowledge receipt of it. Also, obtain your account statement and attach it to the letter.

Most importantly, ensure you copy both the American and the British Embassies in Lagos. This ensures he is deported ASAP to face investigation here. Also, he would NEVER get an American or British visa in this lifetime.

Inspired, I know you are reading this. Thank your stars you weren't dealing with someone like me cos what I would do to you can't be put online for the sake of public decency.

Noted. Thank you.