He used the word "newbie"? That's crossing a lot of lines.
I had some bad experiences with Fiverr when something went wrong with Bitcoin. They would give me a definition of Bitcoin and tell me it wasn't available in my country. Really poor training. All of their support staff were like that.
I don't recall him actually using the word newbie, but he was phrasing things as though he was speaking with an imbecilic three year old, and I finally let him have it. I have a long fuse, but I do have my limits. ;-)