Unable to track register post in Malaysia

I don't know why my parcel send out using the register post Malaysia to my client in Malaysia does not exist. I send it out on 3 Dec morning and today is Saturday still not able to track on the number as it say not exist at all. :(

Anyway I hope my client received the parcel next week, actually my client swap goodies with me. Will show it after I got it! Client send out my parcel using pos express, I try check too and it says the track number only valid after 15 days. :(