Amazon — order received, defective replacement ordered but pick up not arranged

Address:	Gurdaspur, Punjab, 143505
Website:	www.amazon.in

Sir
My order of citra 12w led light pack of 4 with amazon was delievered on 3 novenber. But i have recieved defective product. So i go for replacement and it was done by amazon.
They said when pickup of defective product will be recieved by seller, new product will be delievered.
From that day they arrange pickup but its not done.
I have called them many times, they say that we have submitted your complaint, but no solution is done
Sir my replacement order is.[protected]
My name mohit aggarwal
Registered mobile no [protected]
Email id. Mohit. [protected]@gmail.com
Courier pickup id. [protected]

Please now i want my refund in my bank a/c no - [protected]
Bank - state bank of india
Name of holder. Mohit aggarwal

Please help