Hello i have bought something on aliexpress and the seller choose to deliver my order by company named Yanwen logistics which I have never heard before. Well with the tracking number i can track it until nov24 which then dissappeared. On the last mag it seems like parcel is handed tk china air mail. I will attach the photos. Then when i check the parcel in this site it is stuck with only one message saying china post recieved the parcel. Then nothing. When I ckeck with my local post odfice they say nothing artived and the tracking number i have here is invalid to track in my country and if it was shipped in mongolia it should have different tracking number with letters in the front. So can you help me and check this parcel.
It is the tracking information on yanwen website

And this one is the tracking info on you site