Flipkart - NonDelivery of Flipkart Order Forced Offline Purchase Seeking Compensation

I ordered a mobile phone (Order ID: OD******************) on ** September **** for my brother through Flipkart, with an exchange option. The order reached the nearest hub on *st October ****, but remains undelivered for over ** days despite multiple follow-ups. This caused significant distress as my old phone became unresponsive on * October ****, forcing me to buy a new phone offline, incurring extra costs.
Key Issues:

The delivery agent made false promises, including on ** Oct **** at ** PM (via Flipkart support call), assuring delivery by * PM, but failed to deliver.
On * October ****, my representative visited the hub; the agent vaguely said the order might be canceled without reason.
Contacted Flipkart support/escalation on ** & ** Oct via app (calls over **+ min), but no resolution.
Emailed Grievance Officer on ** Oct ****, no response. Filed NCH complaint on ** Oct; Flipkart confirmed refund but no mention of compensation.
Their *** INR gift card offer was insufficient, so I rejected it.

Evidence: Order confirmation, payment receipt, tracking screenshots, multiple call recording ,offline phone purchase receipt, emails to Grievance Officer, NCH complaint ID.

Relief Sought:

Fair compensation for mental distress, time loss, and extra cost of offline phone purchase due to Flipkart’s delay.

A formal apology for the service failure.

Additional Notes:
The non-delivery and false promises caused financial loss and hardship, as I was left without a phone for essential tasks. Despite refund, Flipkart’s failure to compensate is unacceptable. I’ve escalated to NCH and posted on X/LinkedIn, but no resolution. I may pursue legal action via DCDRC if unresolved. Please help resolve this urgently.