ASUS - ZenTalk

I am the proud owner of a vivobook m513u with very nice oled screen, I am so happy of this laptop that i regret not buying two or more at the time... The laptop has 2 years but in the first year was practically never used and in the second year I use...

From what I see my options are Mobile Advance, the Asus store, Amazon (through MobileAdvance) and Abt.Which is better? OR has fastest shipping? from what I see most have free shipping except for Abt, but it's a 10$ difference.From what it's worth, I'...