JustDial.com — Unauthorised amount deducted

Hello sir,
I have started my online business on justdial.com. after some time the company started provoking me calling again and again that please subscribe my plan of 4000. but i have refused them. after some days a Justdial's agent has come on my shop and activated the plan by mistake by my mobile phone. after some days, when the money was deducted from my account i called on customer service number for deactivate my account but no one has replied me. the money is deducting again and again but no one is helping me.