eSIM Activation for Employee Account Got it. You will need to send the request thru email FSBRequests@T-Mobile.com from your T-Mobile email address with the following details. * Subject Line: FSB Request - Employee Account * Body of Email * Employee Name * Impacted mobile phone number (MSISDN) * Describe your request (e.g. removal of SIM Swap Protection for device upgrade) Once submitted, you will receive an email from FSBRequests@T-Mobile.com to confirm the SIM has been updated. No worries, Requests will be processed within 1 hour. And for security purposes, we do not offer a phone number to request removal of Fraud SIM Block. Sending an email from your T-Mobile email account provides the necessary level of security verification for the request.