Dear Juthamard,
May I kindly ask for your assistance please:
With attached invoice we delivered a Quartz Control Plate in exchange against a faulty one:
After receipt of the defective Quartz Control Plate which has been returned from you we issued a corresponding Credit Note
Invoice and Credit Note show the same amount = balance = 0
However, presently above invoice (No. 139006927) still needs to be balanced, while the Credit Note already has been deducted from you when paying other invoices.