Hello thebenoj,
We would like to see how we can help you with the email used in Find My. To ensure the appropriate contact information is displayed when sharing your location with friends, make sure your desired phone number or email address is selected under Settings > [your name] > Name, Phone Numbers, Email. If you need to update the information listed, follow the steps below:
- Open Settings > [your name] > Name, Phone Number, Email
- Tap Edit next to the REACHABLE AT title
- Select the option to delete an unwanted email or phone number
- Tap Add Email or Phone Number to add a contact that does not appear
You can get more information on editing Apple ID information, here: Manage Apple ID settings on iPhone - Apple Support
After updating the information, see if you are still showing up under the wrong email address for your friends in Find My. If so, don't hesitate to respond back.
Cheers!