Amazon India — laptop return pickup

Address:

New Delhi, Delhi, 11045

I bought a laptop on 28 september but that was a defective laptop i raised a complain for that and with in 24 hours technician came to my house and sent his report that its a defective product and after that they issued me a replacement laptop but i didn't received any replacement laptop from them and deliver agent never came to my house and whenever i called him whether he will ignore my call or disconnect, then i cancel my order but don't know why the same delivery guy was scheduled for my cancellation return product and he did this thing again he was not responding my call, lot of time i raised complain to schedule my pick up and return my laptop but they always keep scheduling this and that delivery guy is not coming at all now what can i do with defective laptop it cost me around 33000 i need my hard money back