Feel free to call on this number for any queries, complaints or suggestions.
For tracking existing orders, make sure that you have the tracking number handy.
This will help the TNT Customer Service to help you faster.
The link given here will open a form which you can fill in to email the Customer support team. Please mention your query in detail so that the CS team can assist you in a better manner. For existing package queries, do not forget to mention your tracking number.