Yes they would use up a ticket; unless they prove to be bugs or enhancement requests, which do not count against the ticket allotment.
Someone might open a U3/U4/U5 like: I can't print from the calendar in the AJAX web-client, though I can still print by using the browser print.
Response: Thanks, this is actually known
Bug 23062 - Calender/Documents : Print is not working we've added your support incident to the list of NE users affected by the bug.
(In which case you won't be docked a support ticket & it gets filed under 'case bugs' in your support portal so you can easily find them again if you want.)
& that's about as clear as I can explain it
