Reliance Communications Limited — Reliance Data Card - Calling and HARASSING me

I have requested Reliance to terminate Internet service on [protected] on Aug-27th. These guys accepted request and assured me that the service will be terminated within week.After few days again they called me and asked for Aug month bill payment and same day I paid my Aug month bill through online. I didn't get any communication that my connection got terminated.So I started calling customer service there is positive response from them. One day I got call from Reliance and they were asked me to pay Sep month bill.I was surprised and I asked them why should I pay Sep month bill that already my net connection got terminated in Aug month.You know what they said we have update your plan and this bill is as per your new plan. Daily they are calling and harassing me. This is very poor and worst service in Data connections. Plz don't go for this product.