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1. Technical Analysis: Include if you have had an independent electrician inspect the meter or provide technical assessment

2. Energy Usage Patterns: Include if there's evidence that your usage patterns haven't changed despite higher bills

3. Legal References: Include specific references to Swiss energy laws and consumer protection regulations if previous attempts to resolve have failed

4. Third Party Observations: Include if neighbors or other parties have witnessed or experienced similar issues

5. Financial Hardship: Include if the high bills are causing significant financial difficulty

6. Alternative Dispute Resolution: Include if you're willing to participate in mediation or other forms of dispute resolution

1. Copy of Disputed Bills: Copies of the electricity bills in question

2. Historical Bill Analysis: Spreadsheet or chart showing billing history and highlighting the anomalies

3. Meter Photographs: Photos of the meter showing any visible issues or unusual readings

4. Previous Correspondence: Copies of any previous emails, letters, or documentation of phone calls with the utility company

5. Technical Reports: Any technical assessments or reports from qualified electricians

6. Usage Log: Personal log of electricity usage and relevant events

7. Witness Statements: Written statements from neighbors or other relevant parties if applicable