Online orders up to £135 are now supposed to have the UK’s prevailing VAT rate added at the point of sale by the EU retailer, which has to have registered with HM Revenue & Customs.
Edit: If I just put a charger in the basket (less than £135) and nothing else on their webshop, it adds the VAT automatically.
According to this, the value of the item makes a difference:
Edit: If I just put a charger in the basket (less than £135) and nothing else on their webshop, it adds the VAT automatically.