I assume you play on a Mac. The CFH doesn't work on apple computers.
Staff can review chat logs, so I don't understand why Grizzly couldn't have looked into it. I suggest sending an e-mail to
support@myvmk.com if you continue to get harassed. If you can include usernames, then staff should be able to find who was bullying you and help solve the problem occurring between you and them.
If you don't mind if I ask, were you saying anything to them? Bullies
want to get a reaction from you; they usually want to intimidate those who are weaker than them, so show them that you are confident by walking away and not saying a word.