Reliance Jio Infocomm — no mobile signal

Address:	400703
Website:	www.jio.com

3 weeks back i ported to reliance jio for voice and data. Unfortunately the reliance jio signal for both data and voice is so terrible that i haven't been able to make any calls at all. 99% of the times i have zero signal on my mobile - even when i move to different locations for e. G. From vashi to airoli. The signal quality is so bad that i cant even call the jio help line! I want to port back to vodafone immediately but i cant because it isn't allowed to till i complete 90 days with this terrible service provider!