If tracking status showing ‘delivery failed’, it means the carrier has tried to deliver it to
the recipient but couldn’t do it successfully because of the wrong address or the recipient
couldn’t be connected through phone. When this happens, most of the carrier would keep the
package at the post office for about two weeks. You need to contact the carrier as soon as
possible to ask for redelivery. Or, it will be returned back to the sender after two
weeks.