iphone 6s plus shipping date change

[j812]

I preordered once on Sept 17, then cancelled it and changed it on the 22nd. the email confirmation says one shipping date (10/12) and when I log in on my laptop, the date says another (10/14). is there any way I can get a more accurate date? Or will I only know when my account is charged? this is my first time pre-ordering a phone and I know they get delayed, but I am just trying to find some insight.