Previously we sent them emails about this manually. We also tried
a Zendesk macro/trigger approach, but using a CC means:
- We can control the behaviour ourselves (Zendesk triggers can only
be edited by admins outside our team).
- We keep the DVLA notification approach consistent and in one place,
so notifications always go to the same people.
- Any further (public) updates to the ticket will also trigger a
notification to DVLA (previous trigger only notified on creation).
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