Courier lost my Encyclopedia, SE are stonewalling me on support (UK)

[Vespar]

You could try to contact your Credit card company and see if they'll pull the charge? Explain the situation...
Not sure what else you can try. I'm not in the UK, so I dont know their policies or rules about lost mail. Usually it falls on the store to eat the lost merchandise and recoup the loss from the courier.

You could also contact your local law enforcement and ask about what steps you can take against the courier for illegally forging your signature...? I dunno...