There is also the “Fuck off support ticket”. I got this from FreshService - they changed the way they did loan requests in such a way that you could loan out one item twice with the status of delivered on both requests. So then you have two people who have been delivered the same item, which is clearly impossible.
Anyway, after arguing with them from for months, they acknowledge it as a bug. I wait for it to be fixed, months roll away. Then they tell me it has been lodged as an “enhancement request”.
Don’t deal with FreshService. Needless to say, we are soon to be leaving them.