No feedback from Service Advisor or Technician

My company car was serviced by the dealership on the 15th of January 2016. It was the routine 45000km service. Upon fetching the vehicle, I was told by the service advisor Neo Matlhaku that the technician JP Kemp picked up that my radio is faulty. I was told by Neo that they have ordered a new radio and that it is covered under the warranty. I asked her what the problem was and she could not tell me and the technician was not available to explain. It was 5pm on a Friday and they were closing by then. <br> I called the dealership on the Monday morning and spoke to Neo and she still could not give me an explanation as to what is wrong with the radio. She also advised that the technician JP Kemp was on leave and she will get him to call me on Tuesday. I called back on Tuesday and could not get a hold of Neo either. I left messages for her to call me back but to no avail. I called on Wednesday and Thursday and still no courtesy to return my call. <br> Quite simple....I would just like to know what's wrong with the radio!!!! As mentioned, it is a company vehicle and the claim goes via the Fleet admin which needs to be justified. I was warned by colleagues of their poor service!!