(Not sure if this question might fit here or could be off-topic because it does not seem to use China Post; I don't know where else to ask for help info; although the item was bought from China [AliExpress])

I bought 3 items from AliExpress. Since they are all very small items, the free shipping method for 2 of the items is listed as "China Post Small Packet Plus" whereas the other one was listed to use "China Post Registered Airmail" (in AliExpress item listing - shipping method).

I had requested the seller to combine the items into one parcel if possible. I was expecting the seller would use China Post Registered Airmail for the combined-into-one-parcel shipment.

After several days, the seller gave me this tracking number: RN141797088MY.
I noted that this is not China Post, but rather it's using POS Malaysia. (Shipping from China => the Philippines).

I ordered (paid) the items on July 11; the seller shipped the items on July 25 (he gave me the tracking number around that day). I have been checking the tracking number for many days, but there is no update (POS Malaysia tracking and track-chinapost.com does not show any information; only global.cainiao.com shows that the tracking number is indeed China=>Philippines but there is no other information).

I have asked the seller what is the real status of the package, since I am unable to track the item. He just asked me to wait, there might be delay in the shipment.

I would like to ask what do you think of the above?

Is it possible to have "POS Malaysia" for a shipment that comes from China going to the Philippines? and no tracking updates?