Shenzhen SEG Talent Training Center is the IELTS test center in Shenzhen designated by the Cultural and Education Section of the British Consulate General, and it is the third test center in China except Beijing and Shanghai. Since 1990, the center has held IELTS training for more than 10 years.
This word of mouth is good ~
There is a very good IELTS training course in Shenzhen on the 7th floor of Huaqiang North Seg Building (next to the Economic Building, not the Gaoseg Square), so you should be able to sign up. Even if you can't register, they will tell you how to register, when to register and where to register.
This is online registration/filling in real information.
Its official website, you can apply after you register.