Amazon India — Returned status

Address:	560094
Website:	amazon.in

Im manoj here i order for krown active car basstube rs 3495
It was defective product and i had requsted return & to refund the money. On june 3 delivery had come collected the item and he gave the acknowledgement
Order no :[protected]
Its already 15 days got over but i can not see the status of this order & still how days is required to refund my money and please inform me the status of this order
Kindly do the needful & oblige
Thanking you
Regards
Manoj kumar