If you cannot find the solution to your question or request using the articles on this helpdesk, you can always send an email to servicedesk@twelve.eu, we aim to answer within 24 hours.

Regular opening hours

Do you have a question or request?

• Then call 0182 700 555 on workdays between 8 a.m. and 5 p.m.

Urgent malfunction?

• Outside regular times we are only available for acute disruptions. We will respond to other questions and requests on the next working day. 

On the following holidays in 2025 we will only be open for disruptions. Please note: We will respond to other questions and requests on the next working day:

Holidays 2025

• Good Friday: Friday April 18, 2025
• Easter (Easter Monday and Easter Monday): Sunday April 20 and Monday April 21, 2025
• King's Day: Saturday April 26, 2025
• Liberation Day: Monday May 5, 2025
• Ascension Day: Thursday, May 29, 2025
• Pentecost (First and Second Day of Pentecost): Sunday 8 and Monday 9 June 2025
• Christmas (Christmas Day and Boxing Day): Thursday 25 and Friday 26 December 2025