The easiest and fastest way to create your bonsai account is with Itsme.
When opening the bonsai app, press "Register with Itsme". You will be redirected to the Itsme app on your smartphone, where you can follow the steps. Your e-mail address, mobile number, address and identity details are immediately entered in the bonsai app.
Is the data in Itsme outdated? Read here how you can adjust the personal data of your bonsai account.