Vendor Support
We had similar issues with Oracles Service Desk. They would cycle through new recruits until they knew enough to deliver 'consultancy' this meant my DBA's had to suffer an hour of list ticking while they went through their script before they could admit they didn't have a clue and pass us on to a 2nd line engineer.
I'd put up with this for something minor but used to have to call my account manager to escalate anything serious to second line as soon as we'd been given a ticket number. We were pretty leading edge and working on a joint development at the time so were usually on beta or just released versions for the tools.
It was exciting at the time but developing business critical apps using new Oracle products is not good for your blood pressure.