Assuming the tech support has something to do with computers running some kind of Microsoft OS...
I saw some references to Dell. While I have promised myself to never own one of their products, I have plenty of experience dealing with their technical support.
Last I checked, Dell has different tiers of support:
Gold, Silver, Bronze, Free.
They range in expense and level of experience between the tiers. My employer uses the Gold level, and whenever I have had hardware problems (my company laptop D630 is on its 3rd mainboard), this support has high accuracy, are efficient, and I CAN UNDERSTAND THEM.
A counter-example:
The free-user warranty support (From Dell) is the outsourced garbage technical support with some idiot, probably in India, calls himself/herself Bob, Mary, Joe, or Kim (fake name of course), who is restricted to scripts and is incapable of performing bona-fide technical support. For example, I once had to tell one of these outsourced low-lifes how to get into the Windows Control Panel, to gain access to the device manager so he could review something with me for God sakes! He could not grasp the concept of keyboard shortcuts, such as WIN + PAUSE/BREAK to do the same thing.
I could not believe that guy was employed there!!
Oddly enough, I often end up on the tech support line with the company I work for. Their tier-1 support is as bad as Dell's, and I cannot understand them either (outsourced French support).
I once experienced call-center guy saying something that sounded like "man-gerr-leet" when he was trying to say "lead manager", which was really the shift supervisor; only he did not know how to say/iterate it, in American English, on the English language support channel, of which he was a part of.
The only benefit of this to me is that company policy dictates I take this route whenever esoteric problems appear with no known easy fix and other technicians cannot be reached.
I am paid hourly. In my line of work I usually break 30+ hours OT per week when on-call and 10+ hours OT per week when not on-call.
Don't get me started on retail tech support...