i dont think they will pass it to the guard.
normally they will  call or left a note for u to take the parcel at
their nearest branch

The postman will come and knock ur door , whether to give u the card to collect at the post office or he will bring the item to u

the answer.. they will left only the card, no call, u need to check at ur mailbox, then go to their office, get ya stuff.. tat all

I am now living at 14th floor of an apartment, most of the time, the courier agent will take lift come up and ring my doorbell. I just open the door, sign my name and that's all.
Don't worry TS.

Normally, postman will leave the card in the postbox, they never bother to go your house to deliver it. It's happen to me for almost 5 years already no matter either it's a parcel or just a registered letter.

The last one happen on last Tuesday (before the raya), on Monday night, I already collect my letter from the postbox, nothing left inside. I was preparing to go back to hometown on Tuesday morning, so I really sure no one knock my door that morning. At 9:30am, I went down, check the postbox again, there a card for me to collect a registered letter together with some other letter. I quite surprise, the date on card is on Monday and I can collect the on Tuesday (mean that day).

Look like they already prepare the card one day earlier and put the letter in their storage box. On the next day, just put the card in the postbox. I don't bother to complaint when I collect my letter, I was in hurry to go back hometown. Even thou I complaint, for sure they will said, they try to deliver to my house already on Monday.

I think postman will keep doing something like this even if people complaint about it. Imagine, in one day, one postman need to send 20 - 30 parcel or registered letter to a place only have apartment (like in Bandar Tasik Pemaisuri), he will take hours to deliver all. By putting the card in the postbox, he will save a lot of time.

The answer is YES. I'm staying at 15th floor & postman will ring my door bell to call me sign & get the airmail from him. 

If you are not available, then he will leave a love card to call you go post office grab it by your own.