BG4JGB Please see my Postcrossing records. Although, in my case, international letter exchanges are notoriously prone to accumulating unsorted letters...
However, inland areas are naturally slower, even when you have an appointment.
Sorted out on the same day it was shipped.
The next day: go through local customs + sorting.
On the third day, while traveling to Shanghai.
On the fourth day, I went through customs in Shanghai.
Day 5: Waiting for the airline to provide assistance.
If you encounter a weekend, customs may not even give you back the fees for that day.
