HappyEasyGo — No refund has been given back by Happyeasygo

I have booked my indigo flight ticket from Delhi to Hyderabad for 18 th April, 2020 on Happyeasygo app but due to lockdown situation it got cancelled automatically . I have got the option to put it as credit shell on indigo app, so I did. After few weeks indigo airlines refunded all the credit shell amount to happyeasygo company. Now they didn't refund the amount yet. When I didn't travelled, so why should I pay for that? There is no way to contact them, I tried to email them but no response. This sort of treachery is not acceptable. They should be punished and refund our money back. ### eating on innocent people's money.