Sorry to hear this issue.
As per the tracking, the item has left origin country to destination country on November 12.
For registered postal mail, the tracking is not updated in real time. This tracking status would be updated only after the item clears destination custom and is handed over to local post office for delivery. This stage could usually take 1-2 weeks.
As now it is beyond the mentioned time frame, we will submit enquiry to the post office to institute investigation for this item. They may take maximum two months or 60 days to finalize the investigation. You can verify this with the concerned origin post office. Below is their contact information:
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Singapore post
24/7 Customer Care Hotline
Tel: 1605
From Overseas: 65 6841 2000
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We will update you for any feedback and refund or reship your order once the post office verifies your package as lost.
Please kindly note that registered postal mail doesn't provide definite delivery time and the transit time quoted in checkout is an average and typical time frame. We hope you will receive the order shortly.
If you have any questions further, please let us know freely.
Thank you for your understanding.