Delhivery - Package not delivered

Tracking # *************. I had ordered guitar and it's accessories from John's Music through online on *th Sep ****. It reached Bangalore on *-Sep-**** and Delhivery have been unable to deliver it my place since then. I have raised multiple requests to customer.support@delhivery.com and each time they say that it would be delivered out at earliest.
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Response from Sanjeev Kumar on **th Sep ****:
Dear Sir/Ma'am,

We apologize for the delay, The shipment has not reached the destination city yet. Your shipment is reached in Bangalore and trying to connect from there to the delivery center. Your shipment is delayed due to some operational issues. You may expect the delivery with AWB no. ************* within * working days as soon as possible.

Feel free to contact us for any other queries.

Track your order on - http://www.delhivery.com.

Ship your shipment through Delhivery Visit https://direct.delhivery.com/.

Best Regards
Sanjeev Kumar
Customer Experience
Delhivery
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After following up on **th & **th Sep, i received the below response on **th Sep ****:
Dear Customer,

We apologize for the inconvenience caused to you but numbers are not available however, our team is already working on your request. It's our request to please allow us some time to resolve your complaint. We had already shared your concern with our internal team and informed them to arrange the delivery on the highest priority.

However, we have notified our team regarding your urgency and will try our best to deliver the shipment with AWB number ************* at the earliest. Track your order on - http://www.delhivery.com.

Best Regards
Manisha
Customer Experience
Delhivery
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Below are the challenges i have been facing from Delhivery:
*) They do not have any customer care number where we can call and follow-up on our order
*) Delayed response and they don't care for customer needs
*) They have been operating with Operational challenges and expect customers to keep on waiting just to get a response from their end since i have lost hope of getting the shipment from Delhivery.
*) Careless attitude towards customers
*) Do not acknowledge customer queries and provide resolution on timely basis
Delhivery