winner of $500,000

im editha argoncillo live at phillippines my email is edithacarido0628@gmail.com.my mobile number 09434153819. coca cola company send an email that im 1 of 10 winner of $500.000 USD .. im asking if this is real?  i need your answer about this email and why i need to pay for airprt authority duty fee/ approval registration stamp charges and what is my assurance if its real and i had to pay that duty fee.(Phl. 21,235). if its real why dont you call me in person