I am concerned that you have not received the results of the radiation test. Call or email every day to find out what the results were or if the test needs to be redone. Write down who you talk with at each phone number, what day you called and what you were told, word for word. I prefer email because it notes who the contact person was, what time, and I have Exactly what was said.
It is possible that the results came back negative, so the case was filed without notifying you. Still, keep track of who says what on what day, so that you will not have more than one person telling you they do not know, to try someone else. Or if you find out something, the same person is more likely to remember and help you with the next step. It really helps if you have someone else go to any appointments with you so that they can verify that information with anyone else you speak with. They can also help you remember and sort it all out.