Airindia — refund of my ticket 098 [protected] has not been addressed after 3 months now

I had cancelled my reservation of my journey on 12 jun from lucknow to new delhi to stockholm due to change in the flight timings reported by airlines.

I had booked myb tickets via gotogate and hence airindia wanted me to register the cancellation and refund to gotogate.

Its been close to 3 months now since i am waiting for myrefund but have not received any news from airindia/gotogate yet apart froma ref no : [protected].