results: Array
(
[member_ref] =>
[activity_id] =>
[activity_date] => 2021-04-16
[activity_type] => Conference registration
[activity_description] => 15th General Assembly and Conference 23-25 June 2021 – non-member rate
[activity_cost] => 200
[renewal_date] => 2021-04-16
[payment_date] => 2021-04-16
[payment_reference] => WP19672098153
[invoice_date] =>
[invoice_reference] =>
)