Adidas — Refund not received from adidas

Website:

adidas.co.in

I ordered a Track Jacket From Adidas Official App Worth 3, 599 INR On 2nd January And The Mode Of Payment Was Cash on Delivery / Pay On Delivery And We Ordered Size L But It Was Short To Wear So We Used Return Option In Adidas App And Next Day The Logistics Worker Came To Pick Up The Jacket On 6 January And We Asked Him To Give Us The Money Back So He Said That It Will come in the app and he cannot provide the refund the company will provide you the refund And Today I Am Writing This Complaint On 11th January And Still I Haven't Received The Refund And I Want My Money Back .