I believe that low income workers are being subjected to discrimination and possibly even being punished because in South Australia, and perhaps other states/territories, it costs more, over the course of a year, to register my car for a four 3-month periods than it does for a full-year period. I wish I could pay my car registration for an entire month, but I am unable to find work other than 2 days per week and I receive about $800 per month. Therefore, I can only afford to pay the 3-month period rate, which is $216. For the entire year that would be $864. However, if I were able to pay the yearly rate I would only pay $812. I believe this difference in rates is punitive and discriminatory against low income earners who would be the people paying at this higher rate. Is there anything that can be done about this? Thanks for your help in advance.