My parcel has been stuck in china since 6th December of this month. It was shiped through indochina post loggistics from vietnam

number: EV035722437CN
Normally I receive my parcels in a few days but instead it’s stuck at the export customs. Is there anything wrong with it? I contacted the seller but the seller needs more time to answer:.
How long does this usually take to get released? and what are the reasons it gets stuck for so long?

Hello, I would like to request help checking the status of my two parcels.

Tracking numbers:
CP556342818CN
CP553952112CN

Both parcels were shipped with China Post SAL and have been in transit with no clear update for a long time. I understand that international shipping can have delays, especially to Brazil, but I need more detailed information because these parcels are important and I need them before June 20-23.

Please check with the carrier if possible and confirm:

1. Have the parcels already left China?
2. Are they still waiting for a flight?
3. Are they stuck at export customs?
4. Is there any issue with the parcels?
5. Is there any estimated time for the next update?

I am not asking for a guaranteed delivery date, I just need a clearer status update because I am worried about the long delay.

Thank you for your help.