Jaxtakart — prepaid order never got shipped

Address:

Kolkata, West Bengal, 700157

I have placed an order (#380270) on 29.11.18 by using my credit card. But till now i haven't received the product. Tracking details shows :
The materiall not yet shipped. But thier website claims they generally ships the products with 24-48 hours. I tried to reach their support through phone. But their support phone line is continuously getting busy and couldnt get connected.

Either they should refund or they should deliver my product at my doorstep at the earliest.