I'm guessing all your chat goes to this "LB" channel?
There are little letters above where you type in text. The far right one is an "A" that stands for "active tab". Click that and you will be able to chat to whatever the default channel is for a tab.
If you want to talk in the help channel then you begin typing with "/h " as in "/h hi help channel".
If the issue is that you can't see help channel anymore then you probably created a new tab for this "LB" channel and will need to click the tab that says "Chat" or "Global" right where it says that word on the little tab.
Other than that, you are much too vague with your question for me to help more.
The chat system in this game is not simple, so you must be detailed about the issue you are having.
It was a created tab and I thank you fo0r the information.
Someone was helpful and suggested I use LB, now I can't seem to use the help channel can someone give me ideas i'd like to be able to use that as well.