GoAir — flight cancelled not informed till arrival at the airport

Address:

Mumbai City, Maharashtra

Booked a flight to bangkok from goa on the internet on or around mid february 2020.
Got e-tickets confirmation. About a week later got a text saying there may be a problem and to expect further notice.
A week after that having heard nothing more i double checked to see if the flight was still scheduled and it was still being advertised with nothing out of the ordinary.
Three says before the flight i checked again and chose our seats on the flights out and back and paid an extra 4800 rupees for them. Still the flight was being advertised.
Got to the airport at 0330hrs for the departure at 0640 hrs, got to the desk at 0430 hrs and was informed the flight was cancelled, that they had tried to ring me once but unavailable.
No text messages - nothing.
Booked a flight to bangkok from goa on the internet on or around mid february 2020.
Got e-tickets confirmation. About a week later got a text saying there may be a problem and to expect further notice.
A week after that having heard nothing more i double checked to see if the flight was still scheduled and it was still being advertised with nothing out of the ordinary.
Three says before the flight i checked again and chose our seats on the flights out and back and paid an extra 4800 rupees for them. Still the flight was being advertised.
Got to the airport at 0330hrs for the departure at 0640 hrs, got to the desk at 0430 hrs and was informed the flight was cancelled, that they had tried to ring me once but unavailable.
No text messages - nothing.
Said we could fly tomorrow night and absolutely no apology or any compensation... So taxi fares 3000 rupees, lost hotel night means another 4000 rupees, taxi booked from bangkok airport to central bangkok another 2000 rupees, and an extra night for someone to feed my dogs and cats and sleep over whilst we are away another 2000 rupees.
They did not try to call us on the announcer system at the airport to let us know earlier, so we sat around for 2 hours till they opened the booking in service.
Pathetic company...…... Avoid them. Can you imagine what they would do for customers if the inbound flight had a suspected coronavirus casualty on it about whether to deal with that scenario effectively or say nothing like they did with us and let people board???
Just a text message, an email would have helped but nothing... Got nothing, they lied because they said they called, no calls, they sent email, no email, and they took my money 3 days before its scheduled departure when they already knew it was a cancelled flight because there were only 3 passengers booked on it and they knew that when i got the first message about a possible problem which i actually double checked to see if it had been cancelled, so they had tons of time to inform me properly.
Asked for an upgrade in compensation to business class for flights and denied...….
They are lying please see attached evidence.