Airtel — incomplete port in process

While porting in from vodafone to airtel the process was initiated on 14 apr yet the sim is inactive saying tele verification is incomplete. Since there is no network the process cannot be completed. After visiting airtel gallery for 3 times in-person and called customer care several times they haven't taken any action to resolve the problem. Everytime the request is done they give a time of 24 hrs still the issue is not resolved. There is no follow up response on the complaint registered on this issue.