What is the "Hey You" thing, and how much online time do i need for it?

[Trooper Z]

Whenever someone buys something from the store, a hey you pops up. When i hover over, it says that i don't have enough online time for it. How much time do i need?

 

[Loxo]

Hmm weird...
Haven't seen it yet.

 

[Asheey]

That is a disabled feature.