Amazon India — Not picking the returned item and providing refund

I have raised a request on Amazon platform to return a item because of size issues. But this item is not being picked up by amazon and when I complaint about this to amazon customer support they say it's because of operational or technical issues. This has happened 3 time this week and item is still not picked. This is turning out to be bothersome for me as I can't be always at my stay to give the item. I'm not getting any details about the return pickup even after requesting it multiple times.

Amazon exchange order id :[protected]
Please look into this case