Paytm Mobile Solutions — Misselling paytm soundbox Ticket id- [protected]

I have a outlet named as "Fundoo Froggy" in Kharghar Navi Mumbai, Mobile number - [protected].
Paytm sales executive named Swapnil has come here and said that he has to install soundbox to all merchants because company is giving free of cost there is no charge at all, I have said I don't require it.
I had kept asking is it free of charge? And there is no recurring rental charge? He keeps on saying that there is no monthly rental charge.
Now Rs 125 monthly rental charge is deducted from payout.
So i had requested to kindly deactivate my soundbox and collect it from my premises. And refund my money back to my account, because it is wrong selling done by their sales executive team ( Swapnil).
I have written mails and called many times to there customer care but all of these efforts are gone in vein, from last one month I have been following for deactivating the soundbox.