I just DM'd T-Mobile to ask what the story is with JoD. I'm over here trying to make informed decisions and I'm not getting much from them.
The details are in:
We have received Jump On Demand pricing for well-qualified customers, which includes you! For the iPhone 13 mini 128 GB, the down payment for well qualified customers would be $0 and then $29.99 each month for 18 months. For the iPhone 13 128GB, the down payment for well qualified customers would be $49.99 and then $30.00 each month for 18 months. For the iPhone 13 Pro 128 GB, the down payment for well qualified customers would be $249.99 and then $28.00 each month for 18 months. For the iPhone 13 Pro Max 128GB, the down payment for well qualified customers would be $349.99 and then $26 each month for 18 months.