Pet relocation agency

Try your local veterinarian or contact DogID.be website:
https://www.dogid.be/en/contact DogID
PB 20000
B-1600 Sint-Pieters-Leeuw
Belgium
Tel: +32 (0)2 333 92 22
Fax: +32 (0)2 333 92 20
Email: info@dogid.be
URL: https://www.dogid.be

Try Sonia Morgan http://www.pet-services.eu/contact.php

Have you thought about driving there? It is not so far. You could rent a car if necessary on a one way basis.
Less stressful for everyone.