If you have already determined that your passport is lost or stolen, recall where and when you last saw it. If you report this loss to the authorities later, this information will prove useful to you.

The insurance representative’s support, gave clear instructions on how to report the loss ... you're in a foreign country dealing with a lost passport. The assistance doesn't stop with advice ...

This Government website has further details. What to do if your passport has been lost, stolen or damaged when you're abroad An emergency travel document lets you travel from abroad if you need to ...