Flipkart — Delivery Boy never picked up my order

ITEM : Santo Ceramic Top Table Wash Basin
Order ID: OD[protected]
Date of delivery: 9th Oct 2021
Date of return request placed: 10th Oct 2021
Confirmed for return request: 10th Oct 2021

Flipkart is seriously having loopholes in it's system. It's been more than a month that the product has not been picked up by the delivery guy. He has refused to pick up the item saying that it's heavy and this happened twice. Now, whenever I get rescheduled messages from flipkart I call the guy, he never picks up because it's the same guy as they have one guy doing the job.
I have called flipkart customer care more than 10times and they have called me 10 times. The issue remains unresolved because they are not getting into the core of the problem which is already addressed by the consumer (me) " Hey, The delivery guy never calls to pick up nor does he picks up my calls". Change the guy. Simple. But nothing is being done.
Problem lies in the system in flipkart. Learn from Amazon for a better future.