Keep waiting, can go up to 1 month.

if your item non-sensitve item below RM 500 should be no problem.

If you suspect detained at custom, don't bother waiting. It will take a long time you may have forfeit all the guarantees. Instead, go collect yourself at customs office.

If you are in KV, and the package sent via foreign national courier very likely it is detained at PMIH KLIA. Chat online first to confirm its status and location. You can also simply input the tracking at poslaju tracking
Once confirmed, go to PMIH near LCCT.

Stop at pos pengawal, say want to collect item and fill in the green slip.

Then proceed to the office to retrieve your item from pos. Bring yor parcel to kastam counter next room, open it yourself for taksiran. From there you will have to go through unintuitive back and forth flow of going between kastam and pos counter next to it, but the staffs are very assistive.
Payment by credit card is accepted.

Once cleared you can take your item and report back to pos pengawal.

u ordered bys sea or air ?

can cancel if certain day doesnt reach the location?

This

Just did this for a car item I ordered as well.

I thought below rm500 also got 10% tax now?

Mine still no sound no news..don't know apa status. Courier status no update, when I email they say still waiting for custom clearance