So I currently have the Z, and am not eligible to "Jump!" until April 20th. However, I decided to see how much it would cost to upgrade to the Z1s on the website, and it says I can upgrade for $0 down?? I went to the last step before confirming the order, and it just listed me having to pay $10 for a sim card, and the sales tax.
If I actually did go through with the Z1s purchase, what would happen to my Z monthly payment? Assuming I stayed enrolled in jump, would I just pay for the Z another 3 months, then simply turn it in on April 20th, thus wiping the balance owed on it? I spoke with a T-mobile rep, and they said I would be able to turn in the old Z on April 20th, even if I upgraded to the Z1s today. Also said I didn't actually need to upgrade to a new phone at the time of turning in the Z via the Jump program. But I've read on the official T-mobile support forum that a new phone purchase IS required upon turning in the old phone via Jump. I'm confused.