773. While a seizure of income remains binding, not only the seizing creditor but all creditors may participate in the distribution of the income; they must however have notified their claim, setting out the nature, date and amount of the debt, to the bailiff or the court clerk and to the debtor, the seizing creditor and the garnishee, and have provided supporting documents.
In the absence of supporting documents, the claim is not admissible, unless it is established to the satisfaction of the court that it is impossible for the creditor to produce such documents.