Agent name more important than customer's query

I called customer care asking to check what had charged from my airtime. I referred to agent's name as I heard it, and agent talked over me before I could even finish the query, correcting me on his name aggressively. That was after he had been taking long to respond at the beginning of the call from what seemed like suppressed laughter, which I had ignored as another human. <br> I tried continuing with query, the same mistake reoccurred with his name, and all hell broke loose. He shouted me over and over again stating I have to get his name correctly, even after I had tried explaining getting his name incorrectly is a common mistake, the world doesn't end due to it, just like I had let his laughing with a friend go earlier, he can do the same. He plainly stated I will be not assisted if I keep on calling him with a wrong name. I ended up losing it, he righteously warned me once, and in my stopping I asked for a supervisor, which he refused on, stating he is supposed to have dropped me already.<br> When he finally attended to my query, he couldn't understand its meaning, not amazed!<br> Why don't we change company name to Benjamin, so everybody gets his name correctly before calling?