UK

We are currently not able to ship to the UK/Gibraltar shipments valued less than £135 due to us having to apply for UK VAT (and subsequently charge it and then remit it back to the UK authorities quarterly) which is a bit complicated and costly for our small business right now. 
https://help.royalmail.com/personal/s/article/Pay-customs-fees

Shipments valued at more than £135
Normal VAT and customs rules apply on importation of the goods into Great Britain from outside the UK or into Northern Ireland from outside the UK and EU. 

Read here to find out more about how imported goods are treated for VAT purposes.
If you are interested in purchasing over £135 please message us through the chat here and we can put together a special quote for you.
In that case we don't charge VAT on our end but you have to pay for it at the border as well as £8 processing fee.
https://help.royalmail.com/personal/s/article/Pay-customs-fees

more info:
https://www.gov.uk/guidance/vat-and-overseas-goods-sold-directly-to-customers-in-the-uk