Airtel — safe custody unsafe

Address:	Chennai, Tamil Nadu
Website:	www.airtel.in

My senior citizen dad had kept his airtel postpaid number in safe custody for 90 days due to an international travel. On his return (Within that 90 day period) airtel tells him that due to "technical issues" his number was returned to his previous carrier bsnl!! Guys, joking? It has been ages since he left bsnl and ported the number to airtel. Worse than the technical inefficiency is the customer service, they want my dad to go to bsnl showroom and activate it himself. He doesn't work for airtel, guys, he is your customer!! Treat us right first! Unable to contact customer care on phone since number isn't active, bad service in person. Want the number back. Never missed a payment date, got all emails and receipts in tact. I am not letting this go, airtel.