IS told you the truth..but he only addressed the Priority packaging...as with that...we get a receipt with the zip code and the name of the city and estimated date of delivery..no guarantee..so just like he said...I ask zip and I look at receipt and then have the dcn and look it up... But with a Express package...I actually get a copy back of the label and on the receipt it is the exact same as the priority as instead of saying Priority it says Express and has the zip and the excepted date Guaranteed delivery since it is Express. Now in this case..I could destroy the copy of the express label and just use the receipt just like I do for priority as I would just have city and zip... But there is no rule about us not keeping those for the one day it takes the express package to be delivered....and if for some reason it doe snot get there the next day by 3pm or 12pm (only options) then you need that to get a refund.. and since it is only 1 day it is not an issue if we keep them until it is delivered and the buyer finalizes... Or you could come back from the post office and destroy that copy right away...kind of silly and no need. I staple everything...and then the next day as soon as they finalize I then shred them.. And I am sure every vendor does it different...and in my case I have had 46 express packages in 1 day. And I am sure other vendors have had more...but in general you would think less pay for that option...but in my sales (Rx Pain Pills) 90% of the buyers pay the $20 for over note vs. the $7 for 2-5 days... But you were addressing can we "keep the address" after we ship and of course the answer is NO...and actually not one vendor wants it anyways..but keeping the receipt is not considered keeping the address in USPS Express situations) and in USPS Priority situations..we all just use the labels and go from the order page where we can see the address....fill it out..and get it off...I do not mark in transit right after I send it as I wait until It is at the post office but I think a lot of vendors do fill it out then mark in transit..and there is no prob with that as it is "in transit" once it is packaged Hope that clears it all up...and of course I am only talking about USPS Express and Priority. I am sure some use Fed Ex and UPS...and those produce labels like Express.