Sorry, I was coming from a more end user-friendly perspective. I essentially know jack all about coding. 
I checked my various alt GMs again earlier today and there was no new mail (not even for those that never received any in the first place that should have). It’s extremely doubtful any further action will be taken. “One and done”, as that old phrase goes.
I intend to stick around for the 20th anniversary event at least since my active sub lasts through April 2025, but damn I feel so demoralized. I struggled to even login to do some warband reputation world quests and pick up the new Brewfest cosmetic back piece just now. Don’t know if I’ll renew my sub or not, but I’ve basically stopped using my guild banks because of the massive screw-up. Can’t trust it anymore.