You can distribute voucher code by many ways:
Email
Intranet
Poster
Flyer
Etc.
Text for invitations (Onboarding / Temporary employees etc.)
Go to: https://name.platform.co.nl/
Click on "Do you have a voucher code?"
Enter the following voucher code: xxxxxx
Click on "Validate".
Enter your name and e-mail address [and other mandatory info] and get started.