These are the valid values for deny_reason
in the DSIC: dispute_investigation_completed
event message.
CreditVoucherAccepted
CustomerWithdrew
DuplicateDispute
MerchantIssuedCredit
MoneyTransfer
NeverPosted
NoError
NoErrorFreeform
PartialMerchantIssuedCredit
PartialNoError
PostedLate
ProofOfAuthorization
ValidCardPresent