Thanks for your questions.
If I purchase an Enterprise Licence, do I get use Quick Connect as part of the Enterprise Licence, or do I only get Quick Connect for a 30 day period ?
Yes, you can use Quick Connect with Enterprise license.
Why don't you display the Helpdesk Licence and the difference between the Helpdesk and Enterprise Licences, and the price of the Helpdesk Licence ?
Helpdesk will get back soon (in 2-3 weeks), refreshed and revamped, and I promise you'll like it. Watch our news and stay tuned ;)