1.Try to contact only with the supplier from Globalsources which with 3star+ rank member ship
2.Not trust the very cheap price supplier, cheap price sometime means cheat or bad qualilty and serivce
3.Choose supplier with detail and complete company info
4.Contact supplier which email you under their company name's domain email.Not Free mail like Gmail,hotmail,yahoo...
5.Pay to supplier's company bank but not to private bank.