Yesterday I spoke to someone on the helpdesk at Native Instruments, via the online chat facility. Our conversation is still in the history in my browser. When I send a message on it now, to follow up from yesterday, the NI Chat Assistant doesn't come up with an automated message, and there is no reply from anyone else, either. There is no acknowledgement of my message, even. I've tried logging in and out of my account but it makes no difference. Is this normal…?