I have been a loyal customer for 8 years and my upgrade date on my family plan (4 lines) was scheduled for 2/21/11(all lines had this date) since I started checking every month or so since the beginning of last year. I checked today and they all had been moved to late July for 2 of the phones and to September for the other two. I HAVE payed all bills in full on time. I have no idea why they would do this. There are 2 iphones on the account but both were purchased last January.