Before ordering a new SIM, decided to try a third chat, and just asked them if they wouldn't mind humoring me by doing a complete reprovision.
They clearly did something, because my account details were looking pretty weird for a while. My phone briefly lost service, and the "nickname" for that line of service changed to what looks like a Straight Talk branded phone's IMEI. Furthermore, when my service was restored, I got a Google RCS "Messenger verification code" texted to me. Almost as if the rep temporarily hijacked my phone # to try using it on a different phone, and see if VoLTE worked on it?
Don't know. All I know is that it didn't fix the issue. (Oh, and also my voicemail access # changed as well after all of this.)
So, he said he would schedule a call for me "in 15 minutes". I didn't have faith I would actually get a call this time, but I did. Total time on the phone: 90 minutes. Total people talked to: 6. It was lunacy, getting transferred back and forth to different people (some of whom it was clear were not the original intended receipient of the transfer). One person wanted to try transferring my number from the current SIM to the SIM I had previously had VoLTE working on that I had let expire. I was pretty sure that wasn't going to work, since as far as I know, once an AT&T SIM has been assigned a phone #, it can't be changed or re-used. Sure enough, they couldn't make it work.
In the end, the conclusion? My brand-new SIM card, with a ICCID that is not far off from the one I had that VoLTE worked perfectly on, is not "compatible" with VoLTE, and I need a new SIM.
So rather than just sending me a new SIM for my troubles (and especially given that they only charge $0.99 for the thing), they transferred me to the sales department. I nearly hung up and just went to the web site to place the order, but I let them take my information and put the order through.
I received an e-mail confirmation a few minutes later. They're sending me a T-Mobile SIM.
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I...why do I even bother?
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