Airtel — airtel service after porting

Address: 411043

I've ported my number from vodafone to airtel assuming that airtel has better service and network. But now i'm frustrated. On the 22nd of september, i requested for porting from vodafone to airtel. On 26th of september, i received the message from both carriers regarding approval and acceptance of porting the number. The porting was successful i restarted the phone, it shows full network on my phone. But i'm able to make a call or receive calls and i'm not even able to send or receive messages. Store staff said after frc it will be activated immediately, so i made frc of 76. I waited for 2 hours but it didn't start. By the time i went to the store it was closed. Next day, i went again she called the customer care they said the process is complete nothing is pending from their side. On this staff had no answers. She tried a few things it didn't work. She called the customer care again and asked if giving me a new sim would work. Then she gave me a new sim and said in a couple of hours insert this sim in your phone and in 4 hours your sim will work. I followed the process but still, the issue remains the same. Next the day the store was closed and i went to other stores each had an excuse but no solution. I can understand there might be some technical issues but no one is giving the solution which is frustrating. It's been 4 days my number is not working. Everything is linked to that number. I cannot afford to lose that number. This is pathetic service and unprofessional. They themselves don't know what the issue is.