Airtel — sim not working on porting

Address:

Gautam Buddh Nagar, Uttar Pradesh, 201301

I have ported my number to airtel and my old sim has stopped working and my new airtel sim is showing not registered on network whereas the network signal lines are visible on phone. I have visited to sector 16, noida airtel store there all the system were not worling and they gave me a number to call near by 5.00p. M today and even 6-7 calls they are not even answering the calls.

Resolve my issue and confirm by when my number will start working.

Alternate number [protected].