Delhivery — Reverse Pickup not delivered even after 15 days of reverse pickup.

Tracking ID : [protected]

18th sept : Reverse Pickup was arranged by Nilkamal Limited
19th Sept : Reverse Pickup is done at afternoon.
20th Sept : Material Reached to Delhivery Thane Facility.
Eversince no update on the status of my package on Delhivery portal
every day when I check the tracking, the site by default changes estimated return date to the next date.

There is no call center number or email provided on site where we can register our complaint and take followup of our complaint.

Registering complaint on Delhivery portal is useless as no update is provided by delhivery.