How do I change my user ID? 26 January 2023 17:25 Updated To make changes to your user ID, please contact us by email at customersupport@emberats.com. Related articles How do I update my email? How do I update my account information? Is Prometheum ATS registered? Why are my digital asset securities blocked from trading on Prometheum ATS? What digital asset securities trade on Prometheum ATS?