I bought this charger from Lazada to use with my Samsung Galaxy S5. Although it said it's for S6, I saw somewhere it's also compatible with S5. But when I use it with my original Samsung adapter and cable to charge,  it doesn't work. Everytime I plug it in, it only blink like 3 times then nothing. I line it up directly in the center as per instruction. Is this charger faulty or my phone problem? 
Can i ask for replacement or return product and ask for refund because product not as i expected.

http://www.lazada.com.my/import-samsung-wi...on-4823149.html