As a customer you want someone to resolve your issue, which is mostly a matter of someone being responsible to file a ticket and ensure it gets solved. A chatbot has no responsibility, it is just a useless parrot of the documentation. It doesn't serve any useful purpose except worsening the experience for the customer.
The thing is, I wouldn't be asking for support if I was able to find a fix for my issue in the first place. ChatBots are unable to fix the initial problem because the system used to fix said issue doesn't already exist in the account tools. Human intervention is required to fix the problem, so therefore chatbots are completely useless in this context.
You are the exception though, the vast majority of people don't do that. Those are the users the chatbot is designed to help (because they represent a large portion of a typical support team's interactions).