When you have already troubleshot and gone through the help docs and are actually pointing out a flaw in their system - chatbots are completely useless.
"and are actually pointing out a flaw in their system - chatbots are completely useless"
If you managed to find an actual flaw, then chances are that the next humans you will talk to, will be completely useless as well and only if you bring enough patience and have nothing else to do, eventually you will be escalated to someone with competence. At least that was my experience and usually I cut my losses and give up before making it that far.
When you have already troubleshot and gone through the help docs and are actually pointing out a flaw in their system - chatbots are completely useless.