I once shouted into the phone while on a call with a helpline person. They screwed me over with an invoice that looked like a contract extension (domain, hosting), but turned out was an invoice for a separate, second contract for services I don’t need, nor I didn’t order (antivirus for an e-mail, a paid SSL certificate). A pretty blatant phishing-alike fraud. Later I found it’s their MO.
When the person told me that he understands my disappointment but he can’t do anything, and I need to call another number within the company and, ideally, send them a letter via snail mail - I snapped. I shouted that I’m not calling anyone else and it that is their job to fix it, not mine, and I don’t care which department does what in their company, it’s the helpline person to know this and do all the steps necessary to help me get the money back. The guy asked me to calm down and I hung up.
Not my proudest moment, but you know what? The same day I got mail from them with apologies. They nullified the new contract and moved the money to the correct account.
Shame that the corporate greed degrades people to these levels of pity, and it’s not a lesson I’d like to teach my kids, but sadly: in many cases being the nice guy gets you nowhere.