HappyEasyGo — Refund and Wrong commitment

I booked a ticket in HappyEasyGo on 15 Aug 2021. I was cancel my booking after contact with HappyEasyGo customer care number. They told me that if you cancel the ticket after all deduction by airlines and our convenience fees charges you will get near about 4500/-. But i got only 454/- on 15 sep 2021. When i contact with airlines they told me that they initiated refund on 26 aug 2021. I contacted with HappyEasyGo so many time and they told we will share breakup and the refund status. It takes more than three months when i got a breakup by mail and no airlines written charges deduction. I was facing so many problem with HappyEasyGo for my refund but they committed me fake promise.
I want to complaint about HappyEasyGo for my refund and they refund me my payment after deduction. Please see attached ticket.