Airtel — my number ported from airtel pre to postpaid but now its showing invalid number i am not receiving any incoming call or msgs

My airtel number ported to corporate sim postpaid but that onwards i am not receiving any calls please help me to resolve this issue my number is [protected]. And i contacted airtel retail in koramangala they said send mail to enterprises airtel email i'd after that i sent to that email also once they said within 24 hours it will solve after 24 hours again i replied then they said this will resolve every soon now for my mail 6 days gone no replies i put remainders no reply and i sent to some google searched airtel ceo mail also even though no reply please anyone help me to get out of this issue.