How does Walmart know I went shopping at their store 2 days ago and email me a survey?

It listed which store, and the date, which were both correct. I didn't order online or use the app. I just drove there, bought some items with a debit card and left. I got an email just a few moments ago that asked me to take a survey about my visit 2 days ago and then listed the store address and it was accurate.

I find this kind of alarming. Is the Walmart app tracking my movement even when it's …

email privacy shopping store survey walmart