Coolpad India — Coolpas cool play 6 ( I cannot find any exchange option of my cool play6)

Address:

Bandha Card, burdwan, West Bengal

Dear Sir,
I am an user of Coolpad cool play 6, now i want to exchange my phone, but I cannot find any exchange option of cool play 6.
It is very interesting that when I want to exchange with coolpad cool play 6 new version there are no option of exchane.

I will thank full to your company if you suggest me the way of exchange.