Trackon Couriers — Shipment hasn't delivered yet

Sir,
I sent a shipment on 21/09/2021 from Bikaner, Rajasthan to Adipur, Gujarat which hasn't delivered yet and i also registered a complaint on 27/09/2021 and still i didn't get any satisfied response from your employees and they told me if i want to file a case against your company, i can, they really don't care, this is really so ridiculous manner of talking. When i tracked my shipment on your website then it showed that shipment is out for delivery on 25/09/2021
In this shipment, there is dessert and it might be expired because of laziness & irresponsibility of employees of your company, i am really very disappointed and got mentally harassment
I expect a positive response from you otherwise i have to sue you