Boy, what a ride. I can't do live chat support because it requires a serial or SNID, and my laptop is well out of warranty. I'm not interested in getting on phone support unless it's the absolute last possible option. There's not a forum category for "the site is busted, what do I do". So, here's my problem.
I want to buy a new power cord. I want to buy it directly from Acer, because this one lasted me two and a half years, which at 12+ hours a day is pretty good, and the reviews on the comparable Amazon options all have enough negative reviews (along the lines of "stopped working after a week" or "worked but got super hot") that I don't want to bother. I've been trying for a couple of days to finalize my purchase from Acer, but I'm consistently getting this error message:

I've tried Chrome. I've tried Firefox. I've tried both but disabling my adblocker. I've tried a Chrome Incognito window. I've tried a Firefox Private window. I haven't tried IE because it's disabled on my system and if the site only works for purchases with IE I'm not sure I want to buy direct after all. Additionally, every time I hit the go button and then get the error, it's silently doing a charge and then immediate credit back from my bank account. I feel like I have to be missing something, but hopefully someone here can help.