Airtel — airtel postpaid connection is not activated

Address:

Ernakulam, Kerala, 682030

I applied for a airtel pospaid connection on 8th may and i got a call from the executive and she got an appointment for the documentation work also from my side i provided all the document and they gave me SIM and told me that the sim will get active within couple of hours. Its almost a week now but the SIM is not activated. The executive is not picking my call too. Please help me to get his done ASAP