Everyone complaining is hilarious - you were given a Oct 1-6 email like me remember? 
If you want to complain however, my gripe would be checking out on the App Store app and getting a 9/19 delivery and then 10 minutes later getting a Oct 1-6 delivery
If you want to complain however, my gripe would be checking out on the App Store app and getting a 9/19 delivery and then 10 minutes later getting a Oct 1-6 delivery