#1) I want to know if I use this service, instead of EMS and Airmail, what type of packaging is acceptable? I know USPS has their own packaging you can use but I normally ship cels using thick cardboard for protection. Am I allowed to use cardboard or is it a requirment to use a Global Priority box/envelope (I don't think they make them the sizes I need for cels, etc.)
#2) Does this service provide adding tracking/delivery confirmation to the package like regular domestic Priority mail does?
#3) I know USPS can be picky about certain ways the packages have to 'look'. Do you know if I can use regular clear tape or do I have to the brown paper tape for the packaging?
I really appreciate any help given.
