Contact

If you encounter issues using our tools, find outdated information, or have policy updates or data corrections, please contact us:

Email: 1055567003@qq.com

You can report

• Page errors or outdated info
• City policy updates
• Cost data corrections
• Tool bugs or calculation errors
• Feature suggestions
• Partnership inquiries

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• Passwords, keys, or ID numbers
• Full contracts or financial documents
• Other sensitive personal information

We will respond within 3 business days.