See dedicated section of the website BECOME A CUSTOMER and benefit from our great "online offer".
If you switch to Colsam Energie signing an online gas and/or electricity agreement directly from our website, you will get a special WELCOME BONUS
**The welcome bonus consists of a 20€ discount on your first light/gas bill, and it is bound to a min. 24-month agreement. This offer is valid up to 30.06.2017 and it cannot be combined with any other ongoing promotions.