Vodafone — No signal and not allowing me to port

Hi,

I reside in poompuzhil nagar, avadi, chennai - 62.in my place there is no vodafone signal, have raised multiple complaints but no solution. During lockdown i found it very difficult since no one was able to reach me. So decided to port and initiated the process, people from vodafone called and convinced me that they will fix the issue in 2 days and ensured i am not porting to another service provider. Now it is been 2 months no solution the number provided to contact them was not working. Need your help in fixing this and ensure no other customers are cheated by vodafone.