Sundarban also maintains a dedicated Facebook group:(Sundarban Courier service (Pvt.) Limited) as a single point of access number for addressing complaints, queries, and handling any form of information passing. This has been specifically done to facilitate and cater to the clients so that they are able to avail the necessary answers. This has also been developed to serve at a national level so that anyone is able to raise their respective query and complaint. The Call Centre is an ever growing service and it subject to further expansion in terms of headcounts. This service is operational from 7 AM to 11 PM.