There are new rules that have come into effect when sending orders to the EU. We have been set up with the EU's new IOSS system which means we are able to charge VAT and Duty at the point of purchase to avoid customers incurring extra admin fees when paying for customs upon delivery.
If you have a subscription that was pre-paid for, we will pay the VAT for each remaining box at this end before they're sent out so we can honour the original price paid for the product so you shouldn't incur any charges when they are delivered.
If your order is over 150 euros (£135) then you are required to pay for the taxes and duty upon delivery instead.
You can find more information here; https://www.royalmail.com/brexit If you want any further reassurance or clarification, please get in touch!