Vaccinations - How do I make payment? Payment is made online when you purchase your vaccination on the DA Marketplace. Related to Medical Services Vaccination Related articles Vaccinations - Is my child eligible for subsidised vaccinations? Vaccinations - Can I use my CHAS card for nationally-recommended vaccinations at the DA Clinic? Vaccinations - Can I use my CHAS card for nationally-recommended vaccinations for home-based vaccinations? What payment methods are available on DA Marketplace? Will my vaccination records be automatically updated?