UJ023664428CN was just shipped from Shanghai on Jan 31. It is now in Shanghai airport.

china is experiencing coronavirus breakout. Workers are informed to stay at home to avoid virus spread. most parcels shipped in Jan might have 2 to 3 weeks delay.

this kind of parcel starting with U is china post ordinary parcel. China Post will not scan and update its status after it left China. so you can not see new status and know where it is now.

This is a slow and cheap service for low value item. Both China and destination country give very low priority to sort and deliver this kind of parcel. china post ordinary parcel might take 4 to 12 weeks to reach your country.

If your buyer protection is expiring, you should open dispute to paypal/aliexpress for lost parcel refund. Otherwise keep waiting.