No 1. The fine is unlawful
You should set out the reasons why you believe the infringement is unlawful. Eg. details on the Infringement Notice are incorrect.
No 2. Mistaken Identity
You should set out the reason why you believe there was a mistake of identity. You also need to identify the name and address of the person who you say you were mistaken for, and the relationship of that person to you.
No 3. Special Circumstances
Special circumstances apply to an individual with a mental or intellectual disability, a disorder, disease or illness, a serious addiction to drugs, alcohol, or a volatile substance, or persons who are homeless. A letter or report from the psychiatrist, social worker, or drug counsellor must be supplied.
No 4. Exceptional Circumstances
Exceptional circumstances should clearly show why you should be excused where other citizens pay their fines. This could include a vehicle breaking down or medical emergency. Documentary proof must be supplied.