[SOLVED] How to bring a phone to a carrier?

Solution
They refuse to acknowledge there is such a thing as a oneplus 9. That aside, I know some carriers say you can bring your own phone. I've never done that however. I'm wondering how one does that.
They don't acknowledge it, because it has not been released yet.
https://www.tomsguide.com/news/oneplus-9-release-date-price-specs-and-leaks
"The OnePlus 9 is officially slated for a March 23 reveal "

So instead of asking about that particular model, ask them about an earlier Oneplus, that does exist.
They refuse to acknowledge there is such a thing as a oneplus 9. That aside, I know some carriers say you can bring your own phone. I've never done that however. I'm wondering how one does that.
They don't acknowledge it, because it has not been released yet.
https://www.tomsguide.com/news/oneplus-9-release-date-price-specs-and-leaks
"The OnePlus 9 is officially slated for a March 23 reveal "

So instead of asking about that particular model, ask them about an earlier Oneplus, that does exist.
 
Solution