Hi,
Okay, so I don't know about anyone else, but in the recent few months I have become very unhappy with WHMCS's support team. I understand they are busy and making WHMCS better, but you shouldn't have to wait almost 24 hours for a response that didn't help you.
At this point I am very unhappy and I did think about looking at different solutions for my billing software.
For example I recent purchased the live chat addon. It seems they didn't update the installer for 5.0 so the directions weren't that clear. I installed it and it said the License was invalid so I submitted a ticket to wait 24 hours to say that I installed it wrong. I installed it where they told me to and it say says "Invalid License".
I am not sure what to do at this point, but hope WHMCS support gets better and I am not waiting 20+ hours for support.
Sorry if this offends anyone, but this is feedback from an unhappy customer.