Airtel — sim deactivated with out notifications

Address:

600020

Dear Sir

I’m using my AIRTEL prepaid number since 11 years, I was out of country for the past 4 months and i back to my mother land.During that period my sim is deactivated, i approach my nearest Airtel office in Adyar Chennai-Tamil Nadu.i received very irresponsible reply from them which made me completely disappointment MY token number is:S042.During my absence i wrote a mail to Airtel customer care and they advice me to approach the Airtel office with in 15 days to get the same number.please help me to get my number my prepaid number:[protected]