We cannot issue D2 forms. Prior to the COVID-19 pandemic you could order your pack from here by post: gov.uk/dvlaforms, please re-visit this page for DVLA updates.
Alternatively some post offices stock D2 forms or failing that your local HGV/PCV training school should have spare copies. If you are renewing your group 2 licence you will be sent a D47P renewal form from DVLA, this is only available by post.