Maharashtra Natural Gas [Mngl] — not responding for gas connection

Address:	Pune, Maharashtra, 411046
Website:	www.mngl.in

I have submitted mngl new connection form on 05th october2018. I have called to mr. Prashant malkar [protected], mr. Patil [protected], mr. Pande [protected] several time. Now they have blocked my number and diverted to some other number. I have attached some screen shot of call details. It's not showing all details now. When i check on mngl site for application number, i am not able to get application details also.
If mngl do not want to give service then at least they have to inform us early so i am not able to depend on them. Try to find out other suitable solution.
But number blocking or number diverting is not proper way of communication.