Its most likely a scam 90% sure. and they probabaly have no puppies at all. Ive almost been scammed. You will have no idea at how many people from Bamenda Cameroon are scamming. Saying they have little dogs likes chihuahuas and saying at 3 months old are fully housebroken. What a bunch of crap. I hate people like that. They need to get a real job instead of scamming peoples hard earned money.
I was searching for a dog for a long time. and I had people sending me pictures of "their dogs" that I know for a fact came straight off google images. I even had one guy show me pictures of "his puppies" that came straight from a breeders website who is NOT located in Cameroon.
They'll usually charge suuper low so you get so interested and think it might be a scam but you hope for the best. But really when it seems too good to be true. It probabaly is.
If you were to just go to google and type in scams bamenda cameroon. A whole bunch of stuff will come up and you can read peoples stories on how they were scammed.
http://www.poloniainfo.com/chihuahua-dog-scam.html http://www.petsonthenet.co.nz/scam