GoAir — not received a refund in against of cancellation of flights during lockdown

I have booked the tickets from new delhi to indore, pnr number - hy8pjd
For[protected]. On[protected], i have received an email saying that your flights are cancelled and you will be eligible for full refund but i have not received my refund till now. I have send many email and calls to customer care but i did not got any response from them. I have to book another flights tickets to travel from new delhi to indore and it has cost me double. Go air should not do like with their customers and should return they amount.