The clerk shall cause written notice of the filing of the garnishee's answer to be served promptly upon the seizing creditor in the manner provided by Article 1314.
Unless the creditor files a contradictory motion traversing the answer of the garnishee within fifteen days after service upon him of the notice of the filing of the garnishee's answer, any property of the judgment debtor in the possession of the garnishee and any indebtedness to the judgment debtor which the garnishee has not admitted holding or owing shall be released from seizure. A new seizure may be made of such property or indebtedness by filing a supplemental petition and serving additional interrogatories.