Airtel — no network in sim after porting

Address:

New Delhi, Delhi, 110046

I ported my number [protected] from vodafone as sms from vodafone porting will complete by 6 sep 2017 by 10:30 pm.
But it still show no service in sim.
Store mostly have sales person they don't know how to handle technical issue. They just say will mail to back office. Customer care are not able to transfer call to technical person. Donot know where to go and when my service will resume. Past 4 days it's just harrassment and call loss.