if it's from UK, be prepared to wait about a month. With all the holidays (Christmas, NY, CNY over here in Malaysia etc) be prepared to wait even longer.

Because there's no tracking number, it'll be impossible to get anyone to do anything for you, so if even in a few months the parcel still hasn't reached you, you'll just have to accept your loss lo. That's the big con about using normal mail, as since there's no way to track it, there's no way to find out where it is or pin responsibility on someone.

you need to get a new code from Pos Malaysia. Call them at 1-300-300-300 to get the assigned code.

Hmm, my usual from UK is 3 weeks.. even registered from Hong Kong also already 2 weeks For me I also luckily haven't experienced lost parcels before from UK (birthday cards got la T.T) but like you normal mail parcels from US hilang before