Since moving house, I have and updated my SIRET , URSAAF and tax office. I still have my CCI to do, but that is all in process. However, I am stuck trying to change my details on the autoentrepreneur website. My messages requesting the change, which I assume go to the Marseille URSAAF, remain unanswered. My searches on the internet have also drawn a blank so far. Anyone got any advice?