You have to notify the Beta administrator that your carrier has changed. The new carrier may not participate in the Beta and now you are ineligible to participate. As I understand it, the Beta is limited to T-Mobile users.
A lesson to be learned. Do not switch carriers if you are in the middle of a Beta test.
I don't know, as I am not part of the beta. I would assume you would have gotten instructions when you were accepted. I know that somewhere in this app is a beta forum. You could try direct messaging one of the moderators by clicking thir ID on any of their posts.
