B1300 heatsink missing?

I just brought a b1300 but the big heatsink is missing.
I have attached a image below from your store.

Did the factory forgot to attach the heatsink?

The heatsink is at the other side. The picture on the website is of a very early demo version and we need to change it.

What is the reason for not using the bigger heatsink?

It is related to hardware design, RF and certification.