Sorry to hear about this. The FCC takes the stance that if the gaining carrier says they have authorization the losing carrier cannot deny the request or question it, but the gaining carrier can face serious issues if they don't have authorization.

Support will work with you to get this resolved and get your number back. We recommend filing an FCC complain against the new carrier as well since they obviously did not have your authorization.

Please feel free to e-mail me directly at tim @ voipo.com if you run into issues getting this resolved with support.