results: Array
(
[member_ref] => 5666
[activity_id] =>
[activity_date] => 2021-06-25
[activity_type] => Workshop
[activity_description] => Course 1: Improving journal quality and impact: working with authors
[activity_cost] => 160
[renewal_date] => 2021-06-25
[payment_date] => 2021-06-25
[payment_reference] => WP14966852703
[invoice_date] =>
[invoice_reference] =>
)