You have selected "Set up another method" in the web browser.

1. Select the Telephone method.
2. Click on Confirm.

1. Then enter the desired data. Select Germany as the area code.
2. Select "Receive code" and click Next.

You will receive an SMS with a 6-digit number.

1. Type it into your web browser and click on continue. You will receive confirmation that your number has been successfully stored.