USPS money order tracking

[plusalpha]

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Has anyone used this USPS money order tracking website to track your money order you've sent to school as secondary fees? https://mois.usps.com/pls/pmoisnp/mois_external_pkg.main

If you did, do you know how often does it update the tracking of your money order? I've sent one exactly a week ago but when I enter the serial number, it says: "No information is available for serial number."...

 

[super frank]

Call up USPS and ask.