if you can afford a lawyer, use one.
Mark Stenberg is pretty good and his number is in the traffic lawyer thread in this same section, theres no way you cant appeal it and take it to court just because you rang the SDRO re the witness. That sounds like total BS they are trying to fob you off with, definitely fight it if you have the monies and keep us posted, good luck, your going to need it the way the system is set up..