[Skryptec]

Their response:
Dear valued ZTE customer
We would like to inform you the Axon M is a unique device and is exclusive to AT&T and they have asked us to direct you back to them during your first 12 months of ownership.

Rubbish.

If It's exclusive to AT&T, why Is It available to purchase from ZTE? The latter Is where It was purchased, and It's the very same entity who's responsible for the Item.

It's impossible to own this phone for a year since it was released on October 17, 2017

They're not referring to 12 months per se.

They've stated:

during your first 12 months of ownership.

The operative words being "During your first". Meaning anytime between the first minute of purchase, to the last second of the 12 month end date.

Ah :/
I don't know if this phone is SE'able anymore lmao

Of course it is. If you fail, start over and try something different.