Go Air — ticket cancelled by airline no refund is this a joke???!!

Address:

Hyderabad, Andhra Pradesh, 500032

I booked my flight from hyderabad to kolkata on 6 feb from yatra.com on go air.

I received the following mail from go air

Dear smart flyer,

Warm greetings from "goair".
For your pnr tyi2yg on goair flight g8-122 from hyderabad (Hyd) to kolkata (Ccu) on[protected] at 20:45 hrs is cancelled. We apologize for the inconvenience caused. These changes are due to issues beyond our control.

If you wish to avail the option of a full refund or a flight for the same sector on the previous day, same day or next day at no extra charge (Subject to availability), we request you to call us on[protected]/[protected], up to 2 hours prior to departure.

Thank you for choosing goair and we look forward to serving you.

Regards,
Goair

Note: this is an auto generated mail, please do not reply to this mail

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Since then, i have been trying them on their phone, email, to contact them but no one cares the attend them. No reply from mail (Even the one sent to nodal officer) no refund. No alternate flight.

Is this a joke???