> but have no idea who I am.
If you pay with a credit or debit card in your own name when using that card, the store very much does know who you are.
Target dispenses with the entire loyalty-card-and-discount idea to just match by payment data.
If you pay with a credit or debit card in your own name when using that card, the store very much does know who you are.
Target dispenses with the entire loyalty-card-and-discount idea to just match by payment data.
"Whenever possible, Target assigns each shopper a unique code--known internally as the Guest ID number--that keeps tabs on everything they buy. 'If you use a credit card or a coupon, or fill out a survey, or mail in a refund, or call the customer help line, or open an e-mail we've sent you or visit our Web site, we'll record it and link it to your Guest ID,' [Target Stores statistician Andrew] Pole said. 'We want to know everything we can.'"
http://www.nytimes.com/2012/02/19/magazine/shopping-habits.h...
This was really surprising to me. I used Square once at a shop in Seattle, and had an email receipt sent to me.
Almost a year later, I used Square back home in Toronto and asked for a receipt. To my surprise I didn't have to give any information: just using the same the credit card I swiped months earlier was enough.