NEVER EVER send money to anyone advertising from cameroon, these people ARE SCAM ARTISTS and have been pulling everythign from puppies, exotic breed cats to monkeys and others too. most adverts from cameroon are also from the same company and anyone haivng sucess with these poeple is either one of their us agents/brokers, or has a puppymill puppy in their homes...dont support these poeple, belive me, the right one will come along wihtout that risk.
shipping puppies can be perfectly safe, but rember, the uk and some us states (hawaii) have quarrentien laws with pasports to avoid the 6 month quarrentein.
and a flight that long... NOT good for a puppy (anything over 10 hrs is NOT suggested in cargo and can kill a puppy, also remeber that chis are very delicate, so anyone telling you they can ship your baby chi via plain to you at 8 weeks is lying through their teeth or doesnt know what there doing...
hope this helps, have faith, i know its hard, but the right chi will come along...and youll know it!