My Airtel SIM of Hyderabad got blocked twice. Once while I lost my cell phone, the duplicate SIM that was issued after 2 days of twice visiting the customer center near Hi-Tech city in Madhapur, got blocked in the 4th day. I was on roaming, outside the state. I had to wait for 4 days just to reach Airtel's Customer care center to submit the duplicate SIM request 4. Just imagine a worldclass service provider's global and local reach. It was on one Monday that I submited the form at the Madhapur Airtel customer care center. On tuesday... read full review »