results: Array
(
[member_ref] => 5383
[contact_id] => 18587
[activity_id] =>
[activity_date] => 2022-05-05
[activity_type] => Conference registration
[activity_description] => 16th EASE Conference – in-person registration
[activity_cost] => 275
[renewal_date] => 2022-05-05
[payment_date] => 2022-05-05
[payment_reference] => WP26489705359
[invoice_date] =>
[invoice_reference] =>
)