Like a total dumb dumb I thought that if I have something shipped to a UK address, they would ship it with a UK power supply.
I got a US power supply, and when I brought it up with support, I was just told "We're so sad to hear that you bought US plug by mistake." and then left me to it.
Anyway, I found another power supply that works.
5 stars for the unit, but minus 2 for the "sorry, not sorry".
I mean, really - they have an Amazon presence in the UK and could have turned my frown upside down by shipping me something which I told them I'd happily pay for (i.e. the UK-compatible replacement power supply).