Anyone who's thinking of using LPanel I suggest stay away from them, they have the worst support ever!!! It took them a whole week to respond to a ticket and it wasnt much of a response. I decided to move onto WHMCS, I did my research here and they aren't bad at all. Just a warning, stay away from them... If your looking for a good billing system I recommend WHMCS or ModernBill they were the only 2 good ones I saw out there.