So, why does it only receive 3 stairs? Because it was fold twice to fit in the small package... now there's an ugly 'rim/crack/fold' in the middle of my laptop sleeve. Such a pity... bad packing. It's not how you would ship a laptop sleeve; fold in half, tightly packed with other stuff.
*UPDATE REVIEW! 08/02/2014
A few hours after this post I immediately received an email from the customer service. They apologized for this and are prepared to refund me the money on my paypal account. Very fast and perfect service!