There are two possibilities on this case
1. Please allow two days for the POST agency to update all the parcels especially for Global Mail, where the traffic sometimes are congested due to heavy flow. Please come back and do the checking after 2 days
2. Either typos or errors might have occurred at customer side or at our side. For your information, the tracking number is being keyed in manually and it is subjected to human errors, hence your understanding is greatly appreciated here. However, please allow two days before seeking clarification with us, it might always because of the first possibilities.