How long does a drawback claimant have to furnish information CBP requests on a complete claim?

CBP has determined that a drawback claim is complete, but additional information is still required and has notified the drawback claimant (“claimant”). Five days after the notification date, the claimant filed, in writing, an extension for time to respond. Therefore, within how many days of the original date of notification from CBP to the claimant must the claimant furnish the CBP-requested information?