Thanks again ptatohed! It looks like those did not work for me. Can you let me know whether they work for you? I think there is a minor chance that they are misinforming or mistreating me. (see below)

After a week of customer service interactions, I still haven't gotten my email and their explanations for why have all fallen apart. However, a few agents did tell me that my offer had activated and one agent told me which of my transactions worked and didn't work. They claimed to be able to tell me what worked and didn't work, even after my last statement close. Here is what that agent said:

• online spend worked: these (obvious)
• online spend did not work: these, this, this, this
• so so far, everything with ".com" in my statement worked and everything without it failed
• ptatohed made a c***cash purchase about a week after me, and theirs showed up with a ".com" on their statement while mine did not. We both purchased on the website on a PC, but theirs was a physical card and mine was virtual.