Contact your client relationship manager because he knows you and is able to advise you quickly.
Send an e-mail at experta@experta.lu . You will receive a reply within one month and where this is not possible, you will receive notification of the response time.
Write to the member of the management responsible for complaint :Mr. Stanislas Bunetel
42, rue de la Vallée
L-2661 Luxembourg
You are not satisfied with the response ?
You can direct your request to the CSSF, supervisory authority of the financial sector, at the following adress :