results: Array
(
[member_ref] => 5519
[activity_id] =>
[activity_date] => 2020-06-05
[activity_type] => Subscription
[activity_description] => 2020 Subscription part year
[activity_cost] => 46
[renewal_date] => 2020-06-05
[payment_date] => 2020-06-05
[payment_reference] => WP14103384423
[invoice_date] =>
[invoice_reference] =>
)