You can change most of your details yourself by going to the profile section of your account. Any changes may require two-factor authentication.

On the Stake App:

Go to Manage > Settings icon on the top right hand side > Account & settings > Personal details
Select your mobile number, email, address or other detail that you want to change
Input the change and confirm

On the Web platform:

Go to Profile (top right menu icon) > Account & settings > Personal details
Select your mobile number, email, address or other detail that you want to change
Input the change and confirm

For name, citizenship or date of birth updates please contact our support team here.