mine were 1.5 to 2.5 days late from time they were to be delivered and they still refunded. ask usps is who told me a refund was owed because it was past the date and time they had specified and consumer affairs told me this several times at both branches i called and the post offices i talked to also from tx to here did too. they never said anything about any attepts to deliver withing 3 days or any other stipulations they appauligized out the wazo and everyone said instant refund it was their loss because they didnt abide by their contract. guaranteed is just that guaranteed it is their responsibility to get it to u when they promise too that is what u pay for and why u pay the extra for express.