Nearly fell afoul of a Brexit thing yesterday. Was going to order some bike stuff from an online shop. Website in English, .co.uk adress, prices in £. UK phone number for customer support. Add stuff to my basket, go to checkout - just under where it tells you how much VAT is included, is a line "customs charges are the responsibility of the buyer". Er, what? No address of where they're shipping from anywhere on the website. No mentioning of customs in their T&C, just shipping charges. On a closer look, the place is registered in Barcelona. I know it's hard for small companies, but surely they must tell you if they're not shipping from the country they're selling in?
(Mostly posting this to say, watch out when you're buying stuff online.)