results: Array
(
[member_ref] => 5704
[activity_id] =>
[activity_date] => 2021-10-07
[activity_type] => Subscription
[activity_description] => EASE membership subscription 2021 (part year)
[activity_cost] => 18
[renewal_date] => 2021-10-07
[payment_date] => 2021-10-07
[payment_reference] => WP25055919552
[invoice_date] =>
[invoice_reference] =>
)