When I try to track my package, I receive "No tracking information for the shipment or overdue tracking".
I contacted the seller on December 7th and they stated that it was sent via China Post on November 14th and I should receive it before Christmas.
Should I be concerned by this tracking status? Is it possible that I still could receive my package before Christmas?

No record of this tracking number has been found. This may be a result of the tracking number being entered incorrectly. Please check the number and try again. Please allow 1-2 days after the shipment has been sent for the information to appear in our system, as tracking may not be immediately available. For more help, please visit our FAQ.

For no tracking records of your tracking number, it may be caused because you typed the numbers wrongly. You should make sure that you have typed the correct number. Also, the shipment information needs some time to be shown up in the system after you send the parcel. You are suggested to wait for one or two days to check. More helps please see FAQ

I am writing regarding the status of the shipment. On 03/06/2022 I sen the parcel from Poland to China. From 05/07/2022 teh shipment has the status "import customs on-hold" in the city of XIAMEN. Can you provide information on why this stage takes so long? The affected tracking number is CP209032292PL. The link to track the package is provided below.