Heres my situation and the steps Ive taken so far. I'll try to make this as short as possible.
I live in Norway, where Apple does not have any Apple stores og Genius bars. We do have an independent company called "Eplehuset" (direct translates Applehouse) which is an Apple Autorized Service Provider. So in november when the update left my machine unresponsive, and I didnt know as much about these issues as I do now, I handed in my machine there for a technician to take a look, at a cost of 600 NOK (69 usd) which I agreed to. They figured out that my i/o board was defect and they needed to replace that for my machine to be working again. The total price for this repair/replacement would be 2500 NOK (300 usd).
I did not agree to this, so I contacted AppleCare and got absolutely NO HELP when speaking to two norwegian advisors, they hadnt even heard of these issues. I found the tip to get in touch with the international AppleCare by staying on the US page on the getapplesupport website and scheduled a call from AppleCare via the chat (Cora).
A guy named Chris called me from Ireland a couple of days later, but since I didnt have my machine at hand he couldnt help me. He had to go through some steps with me that had to get logged before I could talk to a senior advisor. He also repeatedly said that there was no way an software update could cause hardware to defect and break, so my "old" machine had to have some underlying issues. Og boy.. if I hadnt studied all your situations and prepared for the call, I would have started to doubt my case and probably give up. I asked to schedule another call a couple of days later.
So in order to escalate my case at Apple I needed to get my machine from "Eplehuset", even if that ment me paying the 600 NOK for them to troubleshoot my machine. But I could not get my machine, if I needed to hand it back in for repair later (which I have to in the end even if Apple covers the cost or not). But I got the technician to log the information from the troubleshoot in the Apple system, so that when I had my 4th Apple support call they would hopefully see this information via a confirmation ID. That call was supposed to be today but somehow the Apple system ****** up my phonenumber by doubling the norwegian country code so I just receive an email that they had tried to come in contact with me. And also it seems Im back in the norwegian apple support system since the email i received was in norwegian instead of english as the previous one. I havent found a way for me to change my phonenumber and reschedule the call on my case, so now Ive lost my thread and connection to apple support.
Like treaders say, I am bewildered by Apple and their hopeless system
Please share the steps you've gone through with Apple, it is so helpful to read all the experiences and gives me strength to continue this fight.