Paytm — order return option not seen & call not pickup

Respected sir,
I bought a mouse from paytm. And oreder id is
[protected].
I received item on 6th august 2018. When i checked, mouse is not working.
For return when i go on app, no such option of return was seen in paytm app. Only order status - shipped seen.
And in return policy only 7 days for replacement or return.

When try to help line, but only hold call.
Pls return my order and refund my money.