Hello CorvusMask,
It is a bit soon to call this package lost. With up to a 36 business day delivery estimate, the package could arrive as late as January 28th and still be within this range. I think it's still on its way to you, but if it hasn't arrived by that date, please let us know. I also hope that the customs changes don't affect this too much. If you have any further questions or concerns, please let us know. Thank you!