I have personal experience with Verizon from the inside. They were clients of mine for the year before they became Verizon, when they were still GTE and Bell Atlantic. I wrote the training for their new trouble ticketing module, MaESTRO (Management and Entry System for TROubles), and the monitoring module NeMoW (Network Monitoring on the Web). They were the wackiest client I have ever had, worse than the FAA, which took some doing.
Because if they didn't go live (and become Verizon) on December 31st, the government was going to fine them one million dollars a day, folks were scared to make decisions on how the new modules should work. Further, no one was even assigned to make the decisions. I had a guy on my consulting team whose sole job was to open doors and solve problems, and he was never able to procure me a copy of either piece of software. On which I wrote the training.
You'd carry a notepad around with you and, if you overheard someone in a cube saying something that might apply to you, you'd hurriedly write it down, or quickly copy something in the printer room before they came to get it. I didn't see NeMoW till five minutes before I was to train their trainers in North Dallas that had flown in from all over the country. Towards the end of the assignment, I was making the business decisions on how the software should work.
Whatever connection speed you are paying for, their software doesn't even alert them (ie they neither know nor care), until you are actually getting less than ten percent of that. If you drop below ten percent, only then do they get alerted, and may do something about it.
Their TV spokesman, James Earl Jones, had an ad where he said how great Verizon was, because if you signed up now in September, you wouldn't even get a bill until February; aren't we great? The reason was, the billing module wasn't going to be working till February - you could have signed up for any plan they had and not paid your bill, and they wouldn't have even known about it.
I'm just scratching the surface here; any time a Verizon call goes through at all, I'm amazed. BTW, what you already knew about the vast difference between Tier 1 support and Tier 2 is completely true. Tier 1 guys are in a little cube of a building in Long Beach i na parking lot. Their computers are old and crummy, there's holes in the carpet, the walls are just straight cinder blocks on which someone painted fish, and they're hired off the street with no technical skills at all; all they have and know is their little script.
Tier 2 guys are up in Thousand Oaks, in two campuses you can't see from the road what with all the landscaping, there's fountains and fishies, spiral staircases, cool little museum exhibits of old GTE equipment scattered around and a collection of restaurants in their cafeteria, and they're actual techs. The Tier 1 guys' cafeteria consistes of a little cardboard tray with bags of peanuts and candy bars.
When mistakes like you guys mentioned happen, I seriously doubt they're on purpose; you're lucky anything ever works.