It is not Brexit, also I can not order electric bikes to be shipped to Slovenia (EU): I got answer from Canyon two mounths ago:
Thank you for your email.
E-Bikes are just offered in some countries: Austria, Belgium, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Ireland, Italy, Latvia, Lithuania, Luxembourg, the Netherlands, Norway, Poland, Portugal, Slovakia, Spain, Sweden, Switzerland, United Kingdom (UK).
DHL Freight ship all of our E-Bikes. This is because our E-Bikes are heavier and larger than a traditional bike.
An E-Bike is classified as Class 9 dangerous goods because of the battery.