If you’re looking for treatment and not for a training as a professional we unfortunately can’t help you. We recommend you to take a look at the DBT teams that are working in the Netherlands and Belgium. Here you can find the overview of DBT treatment teams.
You can contact the secretariat of Dialexis
Ursula (U.) Witteveen
Gabrielle (G.) Gortworst
Marjan (M.) Welink