Paytm — Defective product delivered - Macbook Pro

Address:

Chennai, Tamil Nadu

I have ordered a apple laptop. upon opening I came to know that one of the key is not working. I took it to apple service centre Chennai and logged a complaint. They told me to return it since it is very new. so I mailed to paytm and contacted the seller. seller accepted it but he told to contact paytm since they only can communicate to both. from then I am sending mail daily no response. making call daily again no response. I even spend more money in call for waiting in line. can any1 please help me.