How much is the consulting fee for ISO system certification?

Last month, the company just got ISO certification, which was introduced by a friend. On Alipay and WeChat, search for "Run Zheng Tong", handle it yourself, open the applet and upload information! It costs more than 5000 yuan, and payment here is also safe. Orders are recorded and invoiced. It is also very fast to apply for a certificate, much faster than offline! That's a great help!