Airtel — reactivate my airtel prepaid number - complaint

I have been using my airtel number for the past 9 years. Recently i changed it to prepaid as i moved out of india. Now the number is deactivated and i can not reach out to any customer care person. I need the number to be activated as it is urgent. Please help.
I can not reach out to customer care people.

I sent mail to [protected]@in. Airtel.com. There was a reply asking my parents to visit the airtel centre in 15 days to pay rs.20. My friend paid rs.65 today to my prepaid number online through banking service.

Reply from the airtel customer care is below:
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At the outset, i regret the inconvenience caused to you.

We regret to inform you that services for your airtel mobile were discontinued on 24/11/2018 due to no usage found on your number in last 90 days. Usage could be with respect to an voice or video (Incoming/outgoing) call, sms or data usage. Beyond 90 days period, in case of no usage, charges of rs. 20/- per month are deducted from main account towards service extension for 30 days. Due to insufficient balance, the amount could not be deducted and services were disconnected permanently.

Further, you may get the same number reactivated within grace period of 15 days from the date of disconnection by paying reactivation charge of rs.20/- at airtel relationship centre in home circle.

(Please note: we request you to send your blood relatives (Only father and mother) to any of the nearest airtel relationship centre in home circle in order to reactivate your number).

For your convenience, we are including airtel store details url which will help you to get nearby store http://www.airtel.in/forme/arc/reach-airtel or send sms (Arcpin code to 121) to know arc address.

Thanks for reaching out to us. Delighted to assist you!

Best regards,
Ram kumar
Advisor : customer experience
Bharti airtel ltd