Flipkart — Ordered a handset, still not delivered. Order is prepaid.

I ordered a Realme GT NEO 3T on 4th may 2023. Order ID-OD[protected] The order was supposed to be delivered on 7th of may. It has been out for delivery since 4pm 7th of July, however i haven't been able to contact the delivery agent. On contacting the customer support they replied that the team will get back to me. The order is prepaid and i haven't received any updates so far or the reason for this delay. The app still shows that the order will be delivered on 7th may.
Kindly help me with the same.