Lulu,
For more info, as checked with Credit (P Sunee), she mentioned that this case can not offset by write off since we have no AR amount for this account.
They suggested to do manual rebate to offset this fraud amount but if we agree for write off, it can be done if customer overdue for next statement.
Write off will be deduct from Business OPEX which P Sunee mentioned that Business is over budget for now ja.