It does say at the top of the main page that they aren't currently serving outside of the UK -- which is why I wanted to ask them when they're planning to resume service elsewhere.
Thanks for the email address. I just sent them the question.
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I found an email address - or at least a link to send them an email, which uses this address: sales@officialstaunton.com
They do however state at the top of their website that they are only accepting UK orders at the moment.