i also faced the same situation b4. around 2months ago
i also published thing at mudah.my, n received a person's email which claimed that she is a doctor from London n want to buy my soft toys n post to Nigeria. she also said she paid the bank, n the bank wll pay me after i provide them the shipping receipt =.=llllll
i also nearly trust it, but finally i insist i only post things after i really received money. luckily i ddint trust him, n my friends also told me alot conman from nigeria >< i think a lot mudah.my sellers kena just they dont know to post at where to alert others or express their sadness...