We deliver products (physical products) via third party vendors like Blue Dart and DHL. However, we provide all the details like the tracking number and tracking info to all out clients. The customers may also contact us anytime to get a complete information related to their purchase.
The delivery of the software shall be decided at the time of the deal. However, if the changes are to be made then the delivery date shall be considered extended as we would like to deliver our best and such efforts takes time. The situation would be told to the customer.