Delhivery — Lost my courier consignment

Address: Gurugram

Delhivery is the worst courier service I have ever seen
Pathetic customer service
My courier was picked on 29 September
And in the beginning I was told that my courier will be delivered by 2 October
I waited till 2 oct but the courier was not delivered and delivery date was shifted in application
I waited for one more day but the company shifted the delivery date again. This time I registered complaint on their app
But no response was received

I tried to search for their Customer service Number
But then I was amazed that they don’t have any customer service number
I got some number through Justdial but none of the number was operational

I raised multiple tickets in last few days
But didn’t got any replies from them

Few days back I checked the message
And I got the message that my courier was lost by the company
I felt very worried because there was my phone in the courier that was very expensive for me
I immediately raised few more tickets but then the company deleted my message

Then I raised a ticket to return my courier back to me and cancel the shipment
By then they are behaving in the same way
That in beginning the application is showing that they will return the next day
But now it’s showing that the courier will be returned by 10 Oct

I am amazed by this pathetic courier company

I want my courier back Please Help