CY286468663DE arrived Hangzhou customs on Nov 30. It is waiting for receiver's customs declaration.

if you have written receiver's mobile phone number in the parcel, he should have received a code though text message from china post. He can use the code to make online customs clearance. If receiver does not get the text message, he needs go China Post Hangzhou office in person or call 0571-86896573/86896576 for help.

Another possible reason of delay is that the receiver does not want to accept the parcel and make customs clearance. This case often happens when the parcel is a return for refund. If this is your case, China Post can't do anything for you. You need to file dispute to your marketplace(aliexpress,amazon, TEMU etc) which you paid money to.

Hope this helps.