https://central.xero.com/s/question/0D58V00009hODd1SAG/faq-does-delta-give-you-a-full-refundinstant-refund-quiery

https://central.xero.com/s/question/0D58V00009hODd1SAG/faq-does-delta-give-you-a-full-refundinstant-refund-quiery