From what I understand, the registrar's office only makes the transcript evaluations, but admissions is who is in charge of sending it to you. I would keep trying to speak with an admissions counselor about it. Most of the time I try to call around 10 am or 2 pm, because those are the most likely times they are in their offices working (or at least I would guess with lunch breaks etc), and I've had luck actually reaching someone for the most part. Personally, I've emailed them several times and never got a reply back, but I've seen on here that some people have gotten responses via email.
Also, I never actually requested a transcript evaluation, they just sent me one.. not sure what that means haha. The evaluation I received had a mistake on it, and I called the registrar's office and they were happy to fix it. They told me that they would send it back to the nursing school's admissions office, and that I may or may not receive the updated copy as admissions is in charge of sending them out.