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expected_refundobject<money>Optionalcurrency_codestring<currency_code>RequiredvaluestringRequiredcancellation_detailsobject<cancellation_details>Optionalcancellation_datestring<date_time>Optionalcancellation_modeenumOptionalproduct_detailsobject<product_details>Optionalproduct_received_timestring<date_time>Optionalexpected_delivery_datestring<date_time>Optionalsub_reasonsarray<sub_reasons>Optionalreturn_detailsobject<return_details>Optionalreturn_timestring<date_time>Optionalservice_detailsobject<service_details>Optionalsub_reasonsarray<definitions-sub_reasons>Optionalagreed_refund_detailsobject<agreed_refund_details>Optionalmerchant_agreed_refund_timestring<date_time>Optional