Amazon India — Product is returned from my side but they are saying not returned

Address:	560037
Website:	www.amazon.in

Complain for order #[protected]

My problem: on 4th oct, 2016, this order is delivered (Wrongly updated on site as 5th oct) but because of having some defects in it i called to the amazon customer executive and apple customer executive for the replacement of the order. So after long discussion on 5th oct, amazon agreed for the return and replacement over the call and told me that on 6th amazon guy will come to pick it up. So on 6th amazon guy comes and picked the item from my place and gave me one slip (Find in the attachment). After that i called amazon customer executives for the the status of the replacement because on site and application, it is no where mentioned when i will get the replacement. Now they are saying there is no pickup created for this item then how come it was picked from my place. Now they are not helping me with this matter that's why i am writing to you please help me! With this. I have spent my hard earned money here and the indifferent attitude of customer care people is very discouraging to say the least.
All voice call are recorded in amazon you can check the recording of 5th oct 2016 time between 12 to 1pm that executive girl clearly told me to return that product. May be both the executive and courier pick up person did all this mutually.