Address: Banyaoqiao 16, Lucheng District, Wenzhou
Tel: 88230465
You can call the mayor's hotline 12345 or the district chief's hotline 88508822 to complain.
From top to bottom, it may not be effective for you to find the land directly.
As for VoIP, it's very simple. Just look for the government website.
For example, Wenzhou: www.wenzhou.gov.cn.
You are from ouhai district, so you should be from www.ouhai.gov.cn.
You basically have all the information you want.