Airtel — roaming activation technical issue not resolved within 24 hours

Address:

Mumbai City, Maharashtra, 400057

I urgently need international roaming activated basic plan 149 rs for a month from 10th may 2018. However am unable to get the activated despite multiple efforts on internet and also on 121 customer care number. Two conversations on customer care number with 1/2 hour waits and yet problem not resolved and i am expected to call again. This basic issue should have been resolved within 2 calls but yet not satisfied if this will be closed and am expected to call time and again to chase up for this.. Feeling exasperated!