How can we improve WHMCS?

It would be nice to be able to add a group that has support ticket limitations. They're some customers that need to send several tickets for the same issue. Adding them into a group that only allows one ticket at a time would stop them. It's not a lot of customers but these types of customers show up consistently and always blow up the support desk.

This could be a group or an option in the customer's profile.

whmcs.community/topic/297871-can-you-limit-how-many-support-tickets-a-customer-can-have-per-month/