HappyEasyGo — flight booking charges not refunded

Caseid[protected]With happy easy go)
Flight booking cancelled on 15th may 2020. Was advised by the airline that the refund is done & happy easy go with refund the amount. Post which we were asked to wait for 90 days which we waited patiently as we understood the current situation. Second 5 to 7 working days. Third 3 to 5 working days. Still their is no refund. Approx 44k needs to be refunded by them & this is only increasing timelines.