Travolook — Delay in refund

I have booked my flight from Delhi to Jharsuguda from travolook but my booking was not confirmed although the company has deducted the amount of Rs 5762 on 21/112021 . They promised to refund it by 7-10 working days but till today that is on 27/12/2021 they have not refunded it. I have called them several times and even sent them written complaint on registered email id but they are delaying it inordinately