I have been employed fulltime in my current position for the past 4 years, and the position has included a packaged vehicle. 2 months ago I had an informal discussion during supervision about the possibility of reducing my hours. Finding out that reducing hours to .8 would mean loss of the vehicle meant that I didn't pursue the possibility since I'm not in a position to be able to afford to both reduce my income and to purchase a vehicle. I received a letter from HR today telling me that my hours are to be .8 from 1 feb next year and that I will no longer be able to package a vehicle. I'm somewhat in shock about how this has come about and just what my rights are in this situation. No consultation, and worded as though it is responding to a request that I've made! Any thoughts about my rights in this situation and how I can respond?