Airtel Pre - Paid — sim deactivated

My prepaid number is [protected], which I own for last 6+ years. Last year i have to shift to some other city for 1-2 years. i activated my number with life time plan of airtel. I was told at their New delhi Friends colony community centre exclusive outlet, that now when ever you comeback you can deactivate it and it will be working with the normal existin plan you opt.

In October 2008 I tried recharge it for 200 rupees and nothing happened in it and no result came for those 200 rupees spent in the prepaid coupon. neither I got any balance nor my phone was having network.

Yesterday I tried again to use that sim but no network is found.

The customer care says that your sim has been deactivated due to non use and non recharging. which is very amazing, i dont want to change my old number, whenever i will be back to delhi i will use the same number.

Cutomer care says that it may be allotted to someone else, which is not till now.

Why this company plays with their customer lke this, nobody knows.

Request you to kindly look into my matter and help me with the genuine result and justice.

Thanks
[protected]