Airtel — mobile number deactivated & very lethargic in getting the number back

Address:

560076

I was using a airtel mobile number for more than 7 years in india (Bangalore). I traveled to ireland during 2016 and i could take a one year valid international roaming for one year. But after a year, the international roaming rates got changed and there was one couple of options of 699 rs for 1 day and around 5000 rs for a month validity. The outgoing call and sms was not working. My number got deactivated with reason no outgoing calls or sms for 90 days.
When i returned to india, i checked with airtel office (Near jayadeva, bangalore) and they said they could get back the number on a condition that it will be postpaid. I agreed for that. For eight days i visited the office 5 times and they simply said tomorrow or 2 days and on the eight day they told, it is a vanity number (Fancy number ending with 123) and i have to pay rs 7500 and one more request have to be logged which will take 2 more days. I was totally frustrated with the approach. They could have told me on the first day and i would have simply taken another number. No value for customer time.
-suresh