Support & Contact – De Lijn General questions How does De Lijn deal with complaints and reports of problems? Published on February 11, 2020 08:14 Every message is read, investigated and processed. Even if you don’t want an answer, we’ll take your complaint seriously and deal with it. You can submit a complaint via our contact form. Read more about our complaints procedure. Related articles What should I do if I lose something? How is safety maintained on the bus and tram? How do I purchase a travel pass? Can I cancel my dial-a-bus? Am I eligible to receive free vouchers?