If you lose your case and are convicted and sentenced you have the option to appeal within 28 days.
If you are disqualified it is possible to apply for the disqualification to be suspended pending appeal. However if this isn't prepared by an organised lawyer you may find you have to wait months to get to the High Court while being disqualified.
Appeals can against conviction - e.g. that you should not have lost the case, or they can be against sentence - e.g. the sentence was too harsh.
If you were disqualified in court because the duty lawyer failed to advise you of options such as special reasons or community in lieu of disqualification you may be able to appeal and have those options addressed at the High Court.
I have successfully won appeals against conviction and sentences at the High Court (Whangarei, Auckland, and Tauranga).
If you would like to discuss appeal options please contact me.