Optionalcounter_To indicate the remaining counter limit
Optionallatest_To indicate the refund amount in the latest offer solution
Optionallatest_To indicate which party made the latest offer
Optionallatest_To indicate what is the offer solution. See "Data Definition - ReturnSolution"
Optionalnegotiation_To indicate whether the seller can negotiate with the buyer. See "Data Definition - NegotiationStatus"
Optionaloffer_To indicate offer_due_date
GetReturnDetailNegotiation sub-interface for GetReturnDetailResponseData