Has anyone else received the "mettre à jour vos informations" asking for your ID and income?

I submitted it... does anyone know if they then go on to request more paperwork (as in your tax declaration, etc) or is this simply a perfunctory compliance thing?

I know when I had a similar request in the US it was a real pain in the neck... they wanted tax forms, bank statements, etc... but there it is called a "financial review" (triggered by an expensive purchase at the time). I dread these things because I have companies and accounts in three countries and it is always hard for them to wrap their heads around.

I guess this French one is better than the NL stories... at least it's all online...