Airtel — non activation of replacement sim card postpaid connection even after 16 hours

Address:

411003

There was an issue with my post paid sim for which i got a replacement sim card on 22 may and was being explained that it would take 4 hours to activate voice calls and 4 days to activate sms service. I have even called the customer care team three times enquiring the delay in activation for which the replies were that it is in pending status ("reason being ascertained") and it would be activated shortly. My dependence on the number being important and crucial in my daily work has resulted in acute inconvenience. Is there any way it can be resolved early? Would like to continue with same number instead of termination and going for another number of other service provider.