I think the execution of the the chat bubble (a circle with a strange looking chat icon plus happy face) is not great.

Perhaps "blindness" is an issue. But also the chat bubble execution itself. Do visitors understand what it is?

I wonder what would happen if there were a persistent chat bubble with the text "live chat" or "chat now" "questions?"

In contrast, "Live Chat & Support" in the primary navigation is extremely visible and clear.