Plate cascade matches the seven UAE emirates. After this page you go to the secure checkout subdomain, then to the confirmation screen.
UAE plates split into emirate → category → colour. Each step narrows the next list to a valid set.
If the field is greyed-out it means your category does not carry a colour code. Skip it and continue.
If the credit is posted to a tag you did not intend, the toll authority handles re-issue requests — we do not control posted credit.