Contact us by letter

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In some circumstances, a letter remains a very good way to contact the SWDE.

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For all matters related to customer management, please write to the following address:

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SWDE
BP 515
1400 Nivelles

For all other matters not related to customer management, please write to our head office at the following address:

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SWDE
Rue de la Concorde 41
4800 Verviers