Apple Upgrade Hack

So I tried to lease the iPhone in store but at the last step financing was denied :( So I went back home and ordered online.

I have T-Mobile so there is a $35 upgrade fee. The apple store couldn't transfer the sim card to the 17 so I got an unactivated iPhone on the lease with no upgrade charge.

I then just took it to the T-Mobile store to do the sim sawp for me.