GoAir — customer service not responding

I got a message that my flight of 28th january 2020 has got cancelled on 24th january 2020 and i have to visit www.goair.in or call go air helpline number to modify or cancel my booking at no extra fee. I have been trying to call right from the time i got the message, but they keep me waiting and waiting until i cut the call out of frustration. I wasted a lot of time to reschedule my ticket, but it seems the customer care numbers are just a joke and are virtually non-existent. After which i booked another ticket from different airline. I want my refund of money. But neither did i get any message nor did they pick up the phone. Didn't expect such a lame behaviour from an airlines like goair. I am a frequent traveller and i have seen other airlines handle cancellations much better. Amongst all customer care services i have dealt with in my life, i have never had such a terrible experience.