United Colors Of Benetton — Refund and reply in regards to purchase

Please note that i had returned my product in the stipulated time necessary for returns on 30th November and till date till they haven't got back to me regarding the same. The courier company shows that the product has been received at their end but yet no confirmation received from the benetton people. I have been constantly emailing them regarding my refund and the whole process but they just don't bother to reply. I am extremely disappointed with this and hope necessary action will be taken. My return no is P03601280 and my refund amount is 3036 rupees.