Sometime last August, we bought a Gong Cha milk tea at Megamall Atrium and I was surprised to see this when I got home. My milk tea had an extra free cover of the shaker! When we tried to buy again and informed them that I have the cover, they were asking me to return it because it will be deducted from them, it is part of their inventory. Well, the guy who prepared my drink apologized but I wanted to hear more than that. So the cover stays with me.