HappyEasyGo — Happy easy go - Money deducted but Ticket not booked

I have done flight ticket booking on 18th Nov 2022, on payment section I have done the payment, money deducted from my card but it showed 500 Error on payment page, where ticket not booked. I have tried 2nd time and got the same response, here my money got deducted 2 times, after a while my ticket got confirmed. But I didn't get the first payment amount reversed to my card, I have contacted my bank they said both are successful transactions, I tried to reach Happyeasygo Customer Care through phone/email/Twitter there was no response. It's a amount of 6k, so I cannot leave like that, my hard-earned money. After that I came to know happyeasygo is doing such things to their customers, regretting my decision to book on Happyeasygo.