Vodafone — Refusing to convert your postpaid to prepaid

Address:

Vodafone store opposite to pvr priyas , basant lok market vasant vihar , new delhi

Hi I was forcefully given postpaid plan from my previously prepaid plan when I didnt want, now that after 3 months i have completed minimum time period with postpaid still the company is threatening us that if we do not choose postpaid they will cancel our no. Or else we would have to continue with postpaid only and my current no. Is alot valuable since I have given it to everyone so i can't afford to loose this, kindly please help I'll be loging an fir too I need a response back quick