Miracas International — order no. 150455 placed on 24.12.2017

Estimated delivery date was 09.1.2018, since then message appears that order is undergoing custom clearance at delhi airport and will take 2-5 working days. It's been more than 20 days and still the status is same. Had sent several messages at their site but no response received. Their customer care number is always busy and soon the call gets disconnected instead of putting on hold if their executives are busy.
Kindly refund money for non delivery of my order.