I have heard Royal Mail won’t compensate for lost packages when the insured/declared value is below the actual value of the item.

Does anyone know if that applies to other carriers as well?

I sent something I sold on ebay via UPS, and the insured value is below the sale price. The package is now lost. I assume I’ will have to show evidence of the sale when making a claim and wonder if they’ willl use that as an excuse not to compensate.

Does anyone know? Thanks!