According to inspire best addresses it's Place Sainte-Gudule	Sinter-Goedeleplein	14
here not Rue de la Chancellerie - Kanselarijstraat 

+ as indicated in bce for some companies here (i.e.) https://kbopub.economie.fgov.be/kbopub/toonvestigingps.html?ondernemingsnummer=544277787