Depends on the delivery guy.

1. If small, they will force into your post box.
2. if can carry - normal parcel or not too heavy - they will call you to go down collect.
3. if heavy and bulky - they will come and delivery upstair to you.

Most of the time, they will ask you to go down, depending which courier and postman.
Rajin will send up.
Lazy will ask you go down.

Sometime they send up the small item also.
So terpulang pada postman rajin or malas.

I think the reason if they have big van and many items to the condo - so panggil semua turun.
If only 1-2 parcels for that condo, maybe they naik.