Hi Linda –
1. Our Call Centre collects the DOB and mobile # for any phone enquirer.
2. By phone at point of enquiry.
3. We do – but our Call Centre only commenced 14 months ago so we are steadily building the database.
4. We use – middle name, current/previous postal address, ownership detail
5. No real issues- the supply of DOB and mobile # by ratepayer is not mandatory but is encouraged as it assists both the ratepayer and Council.
Hope this helps.