Everybody who reads phil's Network will eventually experience a problem that, regrettably, can't be fixed by reading phil's Network. As will the majority of the world's population i.e. those who do not read phil's Network.
So you will eventually have to deal with Technical Support, for the product or service that isn't performing properly.
Now support techs have heard everything, so yelling at them, in any way, will cut no ice. Just be very calm and objective, but don't take no for an answer. Be persistent.
Sometimes even persistence doesn't produce results.
I spent half an hour on the phone discussing the problem. I was very polite, and the tech on the other end was likewise. But it was obvious, to me anyway, that we were getting nowhere.
So I closed the conversation. I played a little dirty here.
May I please speak to a supervisor?
Please hold.(A minute on hold)
I'm sorry, we don't have anyone available today.(WTH? They work without supervision?)
OK, I guess we will have to work on this tomorrow?(a few seconds for the tech to start closing the ticket)
May I have a ticket number?
Thank you. Are you filling out the ticket? Did you indicate how polite I was?
Good.
Please indicate in the ticket that the customer was very polite, but indicated at the end that he was extremely pissed off.
Please hold.(5 minutes on hold, and I waited patiently)