| Billing | Complaints about bills including alleged errors and disputes over meter readings and fees and charges. |
| Credit | Complaints about payment arrangements, debt collection issues and payment difficulties. |
| Customer service | Complaints about alleged poor customer service. |
| Supply | Complaints about the quality and reliability of supply of electricity, gas or water. |
| Connection issues / Provision | Complaints about connection issues or the provision of services. |
| Land | Complaints about the way a provider has exercised its powers in relation to land. |
| Service standard payment | Complaints about regulated payments for poor service. |
| Transfer | Complaints about transfers from one provider to another. |
| Marketing | Complaints about the marketing activities of providers. |
| Drainage, irrigation or sewerage | Complaints about the supply of drainage, irrigation or sewerage. |
| Other general issues | Complaints not covered by other categories, including complaints by a person affected by a water service. |