Your first call for cybersecurity and privacy

Your first call for cybersecurity and privacy

by Excellium SA

Do you wish to raise an official complaint? 

We’re listening to you!

Someone writing a complaint on his mac pc

In case you wish to raise an official complaint, you may contact your Account Manager by email or via mail to the following address:

Excellium Services S.A, 5 Rue Goell, L5326 Contern.


In the event the Complaint is considered incomplete, a request for additional information will be sent to you.


In case of rejection or refusal to grant the Complaint in full or in part, you will be formally informed.


If you have not received a satisfactory response to the complaint, in a period of one (1) month but no later than one (1) year after the initial complaint with Excellium Services, you may address an official complaint to the CSSF by one of the following ways:

1)           Log on to the CCSF website at the following address:;

2)           Send a fax: (+352) 26 25 1 – 2601;

3)           Send an email at this address:;

4)           Send a letter at this address:

Commission de Surveillance du Secteur Financier

Département Juridique CC

283, route d’Arlon

L-2991 Luxembourg »


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