Monte Carlo Fashions Limited - The package is successfully returned to the company but still refund is not initiated

I ordered a chelsea boots of monte carlo size * worth **** from the site on *st March. It got delivered on *th march .It didn't fit me well so i decided to return it since it does not offer an exchange. I ordered only because i saw return was available since i already knew size issue could be there. I filed a return on *th March evening and it got picked up by *th March and return was completed by **th March. Till today **th March the refund hasn't been initiated and there's not update by the company. There customer support also does not pick up any calls. Kindly help me facilitate my refund by the company Monte Carlo.