no worries if you order through NM, Saks, BG, Nordies or straight from the boutiques! make known to the SA how you would like your bag, for example, all tags / auth cards must come in the bag, dust bag and box. tell them to check its condition and make sure it is immaculate before sending it out. that's what i always do with my SAs when i order from the U.S.
I totally agree with this. I once ordered a Chanel from saks and it didn't come with a dustbag... really strange