Gaana — Regarding automatic amount deducted from Paytm postpaid without permission

Hii

I'm Akshay today I have received a message from Paytm postpaid rs.399 deducted from my account without any permission. I don't want to renew my Gaana plus. I didn't done any payment through Paytm postpaid. That was very fraud behaviour from Gaana.com.
I want my full refunded.
Please resolve my problem as soon as possible.
Thanks and regards
Akshay