This is exactly what I was trying to communicate to them...I simply want an opportunity to restore my phone to the previous version that has proven to be stable and effective but...
So, I've been going back-and-forth with the senior advisor and she insisted that I purchase a new battery despite facts pointing to 11.4 update as the culprit. She based her decision on the selective information that I sent her from the Battery Health tool...which I of course, rejected, because I feel the information actually supported our case more so.
My biggest concern is that Battery Health tool is currently a Beta version, basically untested to the point of being reliable. Secondly, it shows that even with the increase demand of 11.4, my battery is still almost 80% effective so it should not shut down after less than a minute of answering a phone call or even trying to get IMEI information. Something inherent in 11.4 is responsible for the drainage and shutdowns!
(right-click, link below, and select open to view Battery Health Info for my battery)
Imgur: The magic of the Internet
She completely ignored the top, right battery meter showing my battery at 100%, and ignored again the 78% battery capacity coming from this tool. Is it any surprise that she focused on the last paragraph to try and take money more money from loyal customers? My battery is "significantly degraded" at almost 80% effectiveness?? Really...ummmnn...what??? ...So Apple products are "significantly degraded" after 22% usage???
At any rate, good luck to everyone trying to get this sorted...I'm done with Apple and am going to try out my brother's Samsung S5 while I contemplate/research my next phone purchase.