Hi, I have a Airtel landline and broadband connection. My plan is Home350 (now not available on website) and a Rs 100 topup for unlimited dnload from 9pm to 8am. The speed is 256kbps.I want to upgrade to Freedom 550 with same Rs 100 topup but airtel guys say that topup is not avialble with 550 plan. My friend in Ghaziabad has upgraded his 350 plan to 550 one 3-4 months back. But now airtel is not offering the same in Delhi.I'd like to know if anone has recently upgraded to 550 with unlimited dnload. if yes, when and where.