Other members cannot see anything from the order number

If the last estimated delivery date has passed, he needs to open an follow through with an item not received dispute

What is the item number?

Where is the seller registered?

Was is their feedback like as a seller?

Why did he not chase up his purchase some time during the past 12 months. 

There are actually time frames which apply when goods don't arrive, and they're considerably shorter than a year.