Reliance Communications — phone porting and payment

I have applied for porting my reliance number through 1900 on 31st july 2017 but i do not receive any code for porting but i have received several call from reliance regarding porting. On august 2 2017 i cleared my all previous bill due for porting purpose. But nothing happen and i kept using phone till 15th august 2017 and after that i stop using phone and on 10th oct 2017 i cleared the bill till of august 2017. For september i have not used their any services but they are forcing to pay that unnecessary amount. I am receiving threating calls from reliance jaipur of mr, gosawmi that you have to pay bill for september otherwise you don't know us what we can do. Even directly contacting to me regarding the bill payment or serving notice to me they calling to people of my contact and hampering my reputation. This is clear illegal act by reliance and its employees when they have my all contact detail. Now i need redressal of my reputation when i am company's client for many years and my bill due is just rs 750 and action against all employees who making calls